so Odin is the son of bor and a frost giant...which means Asgardians were around many ages prior.
Odin claims to create humans, Odin lives for many milennia before wedding and having his son Thor.
So if Odin did create humans in the marvel U, then he is a probably around 200k
Odds are, what it is is that Odin is metaphysically bound to whatever force created humanity in the MU, but so is Zeus over on Olympus and Ra in Heliopolis.
The implication in several comics is that the gods are a race of beings born of two things: an energy field inherent in all planets, which gives them life and power, and the beliefs of the more mundane forms of life on that planet, which gives them form and structure. So Odin believes he created Earth from the flesh of Ymir and that he made Ask and Embla as the first humans and so on, but Zeus believes he created Earth according to the Greek myths, the Japanese pantheon believes they created Earth according to their myths, etc. Rather, I should say they
believed it, past-tense, because the pantheons have since met each other and the Skyfathers, at least, are smart enough to figure out that their conflicting views can't coexist.
That's not to say that everything you've read in the myths applies to Marvel's versions of the gods, by the way. The in-story explanation for that is that man's beliefs formed the gods out of that energy field, but then the gods attained independent existence and life. They're not beholden to mortals' beliefs for their existence anymore. So after that belief-wrought incident of creation, the gods became their own beings and interacted with man, which man remembered and passed on, usually orally. As everyone knows, oral storytelling is an utterly horrendous form of transmission for stories if you want to retain any accuracy whatsoever, so by the time writing developed and man started recording those old myths about the gods, which may or may not have come down from direct observation or may have just been skalds' and bards' and troubadours' embellishments, there were a ton of misconceptions and inaccuracies.
A good example of this that the comics actually tackled is Thor's description as a bearded redhead in many myths. In Marvel's version, Thor has been a blonde-haired, usually clean-shaven god for at least the last couple thousand years (i.e. the present, final Ragnarok cycle). The discrepancy is due to the thousands of years of misinterpretation between the gods' creation based on man's beliefs and man's development of writing. Facts got twisted around so much that Thor himself tells a mortal he shouldn't believe everything he's read about Thor. The Warriors Three also joke about Thor matching the mortals' stories toward the end of Simonson's run when Thor is shaving the beard he'd grown off.