12516087507 has 32 divisors (see below), whose sum is σ = 21313442304. Its totient is φ = 6343276800.

The previous prime is 12516087499. The next prime is 12516087517. The reversal of 12516087507 is 70578061521.

It is not a de Polignac number, because 12516087507 - 2³ = 12516087499 is a prime.

It is a super-3 number, since 3×12516087507³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12516087517) 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, 651288 + ... + 670229.

It is an arithmetic number, because the mean of its divisors is an integer number (666045072).

Almost surely, 2^12516087507 is an apocalyptic number.

12516087507 is a deficient number, since it is larger than the sum of its proper divisors (8797354797).

12516087507 is a wasteful number, since it uses less digits than its factorization.

12516087507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321579.

The product of its (nonzero) digits is 117600, while the sum is 42.

The spelling of 12516087507 in words is "twelve billion, five hundred sixteen million, eighty-seven thousand, five hundred seven".