What is bigger than a einsteinbyte?

Answer 1

Whomever gave this name to you was probably being sarcastic (as in, "You're no Einstein."). The other apparently related question "What is a coperbyte?" is also apparently bogus in nature.

The largest value identified by the International System of Units (SI) is a "yottabyte", which is approximately the size of all the known internet in bytes, and exceeds the far exceeds the number of bytes it would take to transcribe every word ever spoken in human history.

There is no larger "official" size than that. As a matter of course, it is unlikely that an "Einsteinbyte" would ever be termed, because each magnitude of bytes beyond the first are all named with Greek prefixes; Einstein is a complete word by itself, not a word part defined as a prefix. It would have been more believable had they called it an "einbyte" or some such.

There is a Wikipedia entry in regards to "Non-SI unit prefixes" that includes brontobyte, supposedly the size after yottabyte and before Geopbyte (the latter named at whatsabyte.com). It notes that those values are non-standardized in terms of magnitude, and are not recognized by any real community.

For now, you should accept that 999, 999, 999, 999, 999, 999, 999, 999, 999 (or 1, 237, 940, 039, 285, 380, 274, 899, 124, 223 using binary notation's "yobibyte") is the largest value that has a name using today's standards. Adding 1 to the values above to advance to the next magnitude would result in an value that has no standard name.