312315166672 has 20 divisors (see below), whose sum is σ = 608182269156. Its totient is φ = 155364903680.

The previous prime is 312315166637. The next prime is 312315166699. The reversal of 312315166672 is 276661513213.

It can be written as a sum of positive squares in 2 ways, for example, as 275221947456 + 37093219216 = 524616^2 + 192596^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49539229 + ... + 49545532.

Almost surely, 2^312315166672 is an apocalyptic number.

It is an amenable number.

312315166672 is a deficient number, since it is larger than the sum of its proper divisors (295867102484).

312315166672 is a wasteful number, since it uses less digits than its factorization.

312315166672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99084966 (or 99084960 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

Adding to 312315166672 its reverse (276661513213), we get a palindrome (588976679885).

The spelling of 312315166672 in words is "three hundred twelve billion, three hundred fifteen million, one hundred sixty-six thousand, six hundred seventy-two".