12503915166639 has 32 divisors (see below), whose sum is σ = 19010767233024. Its totient is φ = 7241976184320.

The previous prime is 12503915166629. The next prime is 12503915166641. The reversal of 12503915166639 is 93666151930521.

It is not a de Polignac number, because 12503915166639 - 2⁴ = 12503915166623 is a prime.

It is a super-2 number, since 2×12503915166639² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503915166629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66991134 + ... + 67177524.

It is an arithmetic number, because the mean of its divisors is an integer number (594086476032).

Almost surely, 2^{12503915166639} is an apocalyptic number.

12503915166639 is a deficient number, since it is larger than the sum of its proper divisors (6506852066385).

12503915166639 is a wasteful number, since it uses less digits than its factorization.

12503915166639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287607.

The product of its (nonzero) digits is 7873200, while the sum is 57.

The spelling of 12503915166639 in words is "twelve trillion, five hundred three billion, nine hundred fifteen million, one hundred sixty-six thousand, six hundred thirty-nine".