312666711172 has 12 divisors (see below), whose sum is σ = 552280453200. Its totient is φ = 154872295976.

The previous prime is 312666711157. The next prime is 312666711179. The reversal of 312666711172 is 271117666213.

It is a super-2 number, since 2×312666711172² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312666711179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365264422 + ... + 365265277.

It is an arithmetic number, because the mean of its divisors is an integer number (46023371100).

Almost surely, 2^312666711172 is an apocalyptic number.

It is an amenable number.

312666711172 is a deficient number, since it is larger than the sum of its proper divisors (239613742028).

312666711172 is a wasteful number, since it uses less digits than its factorization.

312666711172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730529810 (or 730529808 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The spelling of 312666711172 in words is "three hundred twelve billion, six hundred sixty-six million, seven hundred eleven thousand, one hundred seventy-two".