What is a septillion?

Answer 1

Basically, its 1 million to the seventh power. 1,000,000,000,000,000,000,000. You've got a million, billion, trillion, quadrillion, quintillion, sextillion, septillion, octillion etc.

1 Septillion can also be said to be 1 yottabyte if measured in data space. 1 yottabyte is 1024 bytes or 1,000,000,000,000,000,000,000 bytes.

The biggest number known is googolplex which can be measured as = 10(10100) or 1010,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000

Thinking of this another way, consider printing the digits of a googolplex in unreadable, one-point font. One-point font is 0.35145989 mm per digit, so it would take about 3.5 × 1096 meters to write a googolplex in one-point font. The observable universe is estimated to be 8.80 × 1026 meters, or 93 billion light-years in diameter so the distance required to write the necessary zeroes is longer than the estimated universe, so it would not be possible, let alone physically possible to write this number. If i helped please contribute to me :)