A pebibyte is a unit of information or computer storage, commonly abbreviated "PiB".

1 pebibyte = 2⁵⁰ bytes = 1 125 899 906 842 624 bytes

tebibyte << pebibyte << exbibyte

The pebibyte is closely related to the petabyte, which can either be a synonym for pebibyte, or refer to 10¹⁵ bytes = 1 000 000 000 000 000 bytes, depending on context (see binary prefix).