Yersosexikillion is equal to 103*103*102.4*1040+1.8*103*1060+1+3. The term was coined by Trakaplex trying to make puns on Bowers' illions on answers.com.  This was the first confirmed quantity, though the name itself was first mentioned on a jocular Googology Testing wiki post trying to use illions as examples in sentences.
It comes from 'yersillion', 'sex-' and 'ikillion' with an "o" vowel first introduced in Tier 2.
- what is the biggest known number answers.com 1/14/2021.
- Onliyetapunillion? Gota-tenda-horsi-onli-yeta-palillion?.[dead link] Nov 25, 2020.