At one point it was the largest possible measurement for bytes. One brontobyte is 1024^9 or 1237940039285380274899124224 bytes. Or simply a 1 followed by 27 digits. (Not zeroes)

Recently adopted was the Geopbyte, which is 1024^10 or 1267650600228229401496703205376 bytes and is now the largest measurement of virtual storage.

Got the covid-19 vaccine

the largest possible measurement for bytes. one brontobyte is 1,000,000,000,000,000,000,000,000,000 bytes. 1 followed by 27 zeros. that number is more than the number of all the cells of the human body in each person living in Indiana and then some.