12516008631 has 32 divisors (see below), whose sum is σ = 19415040000. Its totient is φ = 7024324320.

The previous prime is 12516008591. The next prime is 12516008653. The reversal of 12516008631 is 13680061521.

It is not a de Polignac number, because 12516008631 - 2¹¹ = 12516006583 is a prime.

It is a super-2 number, since 2×12516008631² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12516008592 and 12516008601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516008431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297120 + ... + 336618.

It is an arithmetic number, because the mean of its divisors is an integer number (606720000).

Almost surely, 2^12516008631 is an apocalyptic number.

12516008631 is a deficient number, since it is larger than the sum of its proper divisors (6899031369).

12516008631 is a wasteful number, since it uses less digits than its factorization.

12516008631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39779.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 12516008631 in words is "twelve billion, five hundred sixteen million, eight thousand, six hundred thirty-one".