68056568172 has 24 divisors (see below), whose sum is σ = 176442954800. Its totient is φ = 22685522688.

The previous prime is 68056568171. The next prime is 68056568249. The reversal of 68056568172 is 27186565086.

68056568172 is a `hidden beast` number, since 6 + 8 + 0 + 5 + 6 + 568 + 1 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (68056568171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315076597 + ... + 315076812.

Almost surely, 2^68056568172 is an apocalyptic number.

It is an amenable number.

68056568172 is an abundant number, since it is smaller than the sum of its proper divisors (108386386628).

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

68056568172 is a wasteful number, since it uses less digits than its factorization.

68056568172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630153422 (or 630153414 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 68056568172 in words is "sixty-eight billion, fifty-six million, five hundred sixty-eight thousand, one hundred seventy-two".