131440165600 has 36 divisors (see below), whose sum is σ = 320878306224. Its totient is φ = 52576065920.

The previous prime is 131440165553. The next prime is 131440165601. The reversal of 131440165600 is 6561044131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131440165601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82149304 + ... + 82150903.

It is an arithmetic number, because the mean of its divisors is an integer number (8913286284).

Almost surely, 2^131440165600 is an apocalyptic number.

131440165600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131440165600 is an abundant number, since it is smaller than the sum of its proper divisors (189438140624).

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

131440165600 is a wasteful number, since it uses less digits than its factorization.

131440165600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164300227 (or 164300214 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 131440165600 in words is "one hundred thirty-one billion, four hundred forty million, one hundred sixty-five thousand, six hundred".