13116999871504 has 20 divisors (see below), whose sum is σ = 25414246112940. Its totient is φ = 6558484745600.

The previous prime is 13116999871487. The next prime is 13116999871537. The reversal of 13116999871504 is 40517899961131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2441881273104 + 10675118598400 = 1562652^2 + 3267280^2 .

It is a super-2 number, since 2×13116999871504² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10004454 + ... + 11239354.

It is an arithmetic number, because the mean of its divisors is an integer number (1270712305647).

Almost surely, 2^{13116999871504} is an apocalyptic number.

It is an amenable number.

13116999871504 is a deficient number, since it is larger than the sum of its proper divisors (12297246241436).

13116999871504 is a wasteful number, since it uses less digits than its factorization.

13116999871504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898778 (or 1898772 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 64.

The spelling of 13116999871504 in words is "thirteen trillion, one hundred sixteen billion, nine hundred ninety-nine million, eight hundred seventy-one thousand, five hundred four".