12616145631 has 16 divisors (see below), whose sum is σ = 18772213600. Its totient is φ = 8374031424.

The previous prime is 12616145623. The next prime is 12616145651. The reversal of 12616145631 is 13654161621.

12616145631 is a `hidden beast` number, since 1 + 2 + 6 + 1 + 6 + 14 + 5 + 631 = 666.

It is not a de Polignac number, because 12616145631 - 2³ = 12616145623 is a prime.

It is a super-2 number, since 2×12616145631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12616145651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1014046 + ... + 1026411.

It is an arithmetic number, because the mean of its divisors is an integer number (1173263350).

Almost surely, 2^12616145631 is an apocalyptic number.

12616145631 is a deficient number, since it is larger than the sum of its proper divisors (6156067969).

12616145631 is a wasteful number, since it uses less digits than its factorization.

12616145631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040695 (or 2040689 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The spelling of 12616145631 in words is "twelve billion, six hundred sixteen million, one hundred forty-five thousand, six hundred thirty-one".