317162044556172 has 144 divisors (see below), whose sum is σ = 815728597512192. Its totient is φ = 103886570511360.

The previous prime is 317162044556143. The next prime is 317162044556207. The reversal of 317162044556172 is 271655440261713.

317162044556172 is a `hidden beast` number, since 3 + 1 + 7 + 1 + 6 + 2 + 0 + 4 + 4 + 5 + 561 + 72 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4986243993 + ... + 4986307599.

It is an arithmetic number, because the mean of its divisors is an integer number (5664781927168).

Almost surely, 2^{317162044556172} 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 317162044556172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407864298756096).

317162044556172 is an abundant number, since it is smaller than the sum of its proper divisors (498566552956020).

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

317162044556172 is a wasteful number, since it uses less digits than its factorization.

317162044556172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72628 (or 72623 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 317162044556172 in words is "three hundred seventeen trillion, one hundred sixty-two billion, forty-four million, five hundred fifty-six thousand, one hundred seventy-two".