This is all I could find besides a stupid radio station
10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,
000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 AD
One Mega-Googol Years From Now: Supermassive Black Holes Evaporate
Years = 10 to the power of 106
Supermassive Black Holes Evaporate. After this mind-bogglingly long period
of time, the hyper-gargantuan black holes finally evaporate [from Hawking
Radiation] The universe now contains electrons, positrons, photons, and neutrinos
(none of which are subject to decay, as far as we know). The density of
the universe is so staggeringly low that the electrons and positrons never
have an opportunity to collide and annihilate."
["The Future of the Universe", Professor Barbara Ryden, Ohio State University;
update of 10 Mar 2003]
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