90907169220707 has 12 divisors (see below), whose sum is σ = 105751884369456. Its totient is φ = 77918420406960.

The previous prime is 90907169220697. The next prime is 90907169220709. The reversal of 90907169220707 is 70702296170909.

It is not a de Polignac number, because 90907169220707 - 2⁶ = 90907169220643 is a prime.

It is a super-2 number, since 2×90907169220707² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90907169220709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22012628 + ... + 25814145.

It is an arithmetic number, because the mean of its divisors is an integer number (8812657030788).

Almost surely, 2^{90907169220707} is an apocalyptic number.

90907169220707 is a deficient number, since it is larger than the sum of its proper divisors (14844715148749).

90907169220707 is a wasteful number, since it uses less digits than its factorization.

90907169220707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47865578 (or 47865571 counting only the distinct ones).

The product of its (nonzero) digits is 6001128, while the sum is 59.

The spelling of 90907169220707 in words is "ninety trillion, nine hundred seven billion, one hundred sixty-nine million, two hundred twenty thousand, seven hundred seven".