316564825644 has 72 divisors (see below), whose sum is σ = 878657100048. Its totient is φ = 99314449920.

The previous prime is 316564825613. The next prime is 316564825651. The reversal of 316564825644 is 446528465613.

316564825644 is a `hidden beast` number, since 3 + 16 + 5 + 64 + 8 + 2 + 564 + 4 = 666.

It is a super-2 number, since 2×316564825644² (a number of 24 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9562417 + ... + 9595464.

It is an arithmetic number, because the mean of its divisors is an integer number (12203570834).

Almost surely, 2^316564825644 is an apocalyptic number.

316564825644 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

316564825644 is an abundant number, since it is smaller than the sum of its proper divisors (562092274404).

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

316564825644 is a wasteful number, since it uses less digits than its factorization.

316564825644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19157917 (or 19157903 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 54.

The spelling of 316564825644 in words is "three hundred sixteen billion, five hundred sixty-four million, eight hundred twenty-five thousand, six hundred forty-four".