> no known man has a age of 9223372036854775807 years old!
While true, there are many things which have an age much greater than that of a human. The age of a building, country, civilization, planet, or even the age of the Universe. And, there are also physical "ages" which exceed even that of the range defined: the half-life of krypton-78 is 9.2e21 years.
