162431251172 has 12 divisors (see below), whose sum is σ = 284280154620. Its totient is φ = 81208349856.

The previous prime is 162431251163. The next prime is 162431251187. The reversal of 162431251172 is 271152134261.

It can be written as a sum of positive squares in 2 ways, for example, as 10904789476 + 151526461696 = 104426^2 + 389264^2 .

It is a super-2 number, since 2×162431251172² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1768547 + ... + 1858122.

It is an arithmetic number, because the mean of its divisors is an integer number (23690012885).

Almost surely, 2^162431251172 is an apocalyptic number.

It is an amenable number.

162431251172 is a deficient number, since it is larger than the sum of its proper divisors (121848903448).

162431251172 is a wasteful number, since it uses less digits than its factorization.

162431251172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637870 (or 3637868 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The spelling of 162431251172 in words is "one hundred sixty-two billion, four hundred thirty-one million, two hundred fifty-one thousand, one hundred seventy-two".