90866520030 has 64 divisors (see below), whose sum is σ = 256205472768. Its totient is φ = 20333765760.

The previous prime is 90866520007. The next prime is 90866520061. The reversal of 90866520030 is 3002566809.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10586214 + ... + 10594793.

It is an arithmetic number, because the mean of its divisors is an integer number (4003210512).

Almost surely, 2^90866520030 is an apocalyptic number.

90866520030 is an abundant number, since it is smaller than the sum of its proper divisors (165338952738).

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

90866520030 is a wasteful number, since it uses less digits than its factorization.

90866520030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21181041.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 90866520030 in words is "ninety billion, eight hundred sixty-six million, five hundred twenty thousand, thirty".