90606907531944 has 64 divisors (see below), whose sum is σ = 251719385582400. Its totient is φ = 30198278751552.

The previous prime is 90606907531913. The next prime is 90606907531967. The reversal of 90606907531944 is 44913570960609.

90606907531944 is a `hidden beast` number, since 9 + 0 + 6 + 0 + 6 + 9 + 0 + 7 + 531 + 94 + 4 = 666.

It is a super-2 number, since 2×90606907531944² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26317507 + ... + 29560530.

It is an arithmetic number, because the mean of its divisors is an integer number (3933115399725).

Almost surely, 2^{90606907531944} is an apocalyptic number.

It is an amenable number.

90606907531944 is an abundant number, since it is smaller than the sum of its proper divisors (161112478050456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90606907531944 is a wasteful number, since it uses less digits than its factorization.

90606907531944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55885559 (or 55885549 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 63.

The spelling of 90606907531944 in words is "ninety trillion, six hundred six billion, nine hundred seven million, five hundred thirty-one thousand, nine hundred forty-four".