90266597136 has 45 divisors (see below), whose sum is σ = 252631192021. Its totient is φ = 30087663936.

The previous prime is 90266597107. The next prime is 90266597137. The reversal of 90266597136 is 63179566209.

The square root of 90266597136 is 300444.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 44580099600 + 45686497536 = 211140^2 + 213744^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90266597137) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3592810 + ... + 3617846.

Almost surely, 2^90266597136 is an apocalyptic number.

90266597136 is the 300444-th square number.

It is an amenable number.

90266597136 is an abundant number, since it is smaller than the sum of its proper divisors (162364594885).

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

90266597136 is an frugal number, since it uses more digits than its factorization.

90266597136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50088 (or 25042 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 90266597136 in words is "ninety billion, two hundred sixty-six million, five hundred ninety-seven thousand, one hundred thirty-six".