Oblivion

Oblivion is a very large Googologism coined by Jonathan Bowers. It is defined as "the largest number defined using no more than a Kungulus symbols in some K(Gongulus) system," where a "K(gongulus) system" is a "complete and well-defined" system that is fully describable on a website in a gongulus bytes of information. It is claimed to be larger than Rayo's Number and BIG FOOT. It is the second-largest number Bowers has defined, only smaller than Utter Oblivion.