90121249176 has 64 divisors (see below), whose sum is σ = 257545370880. Its totient is φ = 25743319680.

The previous prime is 90121249087. The next prime is 90121249181. The reversal of 90121249176 is 67194212109.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 748186 + ... + 860246.

It is an arithmetic number, because the mean of its divisors is an integer number (4024146420).

Almost surely, 2^90121249176 is an apocalyptic number.

It is an amenable number.

90121249176 is an abundant number, since it is smaller than the sum of its proper divisors (167424121704).

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

90121249176 is a wasteful number, since it uses less digits than its factorization.

90121249176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116864 (or 116860 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 90121249176 in words is "ninety billion, one hundred twenty-one million, two hundred forty-nine thousand, one hundred seventy-six".