31325166172 has 12 divisors (see below), whose sum is σ = 54821459056. Its totient is φ = 15661892160.

The previous prime is 31325166143. The next prime is 31325166193. The reversal of 31325166172 is 27166152313.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62973 + ... + 258100.

Almost surely, 2^31325166172 is an apocalyptic number.

It is an amenable number.

31325166172 is a deficient number, since it is larger than the sum of its proper divisors (23496292884).

31325166172 is a wasteful number, since it uses less digits than its factorization.

31325166172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345468 (or 345466 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The spelling of 31325166172 in words is "thirty-one billion, three hundred twenty-five million, one hundred sixty-six thousand, one hundred seventy-two".