Pebibyte

A pebibyte (peta binary byte, abbreviated PiB) is a large unit of measurement of bytes (computer memory).
1 pebibyte = 2⁵⁰ bytes = 1,125,899,906,842,624 bytes = 1,024 tebibytes.
It is related to the petabyte which is 10¹⁵ bytes.

1024 pebibytes make one exbibyte.