316320263172 has 18 divisors (see below), whose sum is σ = 799587331998. Its totient is φ = 105440087712.

The previous prime is 316320263153. The next prime is 316320263179. The reversal of 316320263172 is 271362023613.

316320263172 is a `hidden beast` number, since 3 + 1 + 6 + 320 + 263 + 1 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 262406209536 + 53914053636 = 512256^2 + 232194^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 8786673977 = 316320263172 / (3 + 1 + 6 + 3 + 2 + 0 + 2 + 6 + 3 + 1 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (316320263179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4393336953 + ... + 4393337024.

Almost surely, 2^316320263172 is an apocalyptic number.

It is an amenable number.

316320263172 is an abundant number, since it is smaller than the sum of its proper divisors (483267068826).

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

316320263172 is a wasteful number, since it uses less digits than its factorization.

316320263172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8786673987 (or 8786673982 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

Adding to 316320263172 its reverse (271362023613), we get a palindrome (587682286785).

The spelling of 316320263172 in words is "three hundred sixteen billion, three hundred twenty million, two hundred sixty-three thousand, one hundred seventy-two".