131631164432 has 10 divisors (see below), whose sum is σ = 255035381118. Its totient is φ = 65815582208.

The previous prime is 131631164429. The next prime is 131631164471. The reversal of 131631164432 is 234461136131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 107206475776 + 24424688656 = 327424^2 + 156284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131631164392 and 131631164401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4113473873 + ... + 4113473904.

Almost surely, 2^131631164432 is an apocalyptic number.

It is an amenable number.

131631164432 is a deficient number, since it is larger than the sum of its proper divisors (123404216686).

131631164432 is an equidigital number, since it uses as much as digits as its factorization.

131631164432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8226947785 (or 8226947779 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The spelling of 131631164432 in words is "one hundred thirty-one billion, six hundred thirty-one million, one hundred sixty-four thousand, four hundred thirty-two".