90132861056 has 96 divisors (see below), whose sum is σ = 213322636800. Its totient is φ = 37806365184.

The previous prime is 90132861047. The next prime is 90132861073. The reversal of 90132861056 is 65016823109.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141905 + ... + 447663.

It is an arithmetic number, because the mean of its divisors is an integer number (2222110800).

Almost surely, 2^90132861056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90132861056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106661318400).

90132861056 is an abundant number, since it is smaller than the sum of its proper divisors (123189775744).

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

90132861056 is a wasteful number, since it uses less digits than its factorization.

90132861056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305834 (or 305815 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 90132861056 in words is "ninety billion, one hundred thirty-two million, eight hundred sixty-one thousand, fifty-six".