Hellabyte

multiple of the unit byte, equivalent to 1,000 yottabytes

A hellabyte is a unit of measurement for computers of the future. One hellabyte holds 1000 yottabytes (YB) or an octillion (1,000,000,000,000,000,000,000,000,000) bytes.

A hellabyte is so large that it would take about a trillion Supercomputers to store this amount of data.[source?]