12520164320504 has 32 divisors (see below), whose sum is σ = 23506246419600. Its totient is φ = 6251837264640.

The previous prime is 12520164320479. The next prime is 12520164320507. The reversal of 12520164320504 is 40502346102521.

It is a super-2 number, since 2×12520164320504² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520164320507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18575039 + ... + 19237265.

Almost surely, 2^{12520164320504} is an apocalyptic number.

It is an amenable number.

12520164320504 is a deficient number, since it is larger than the sum of its proper divisors (10986082099096).

12520164320504 is a wasteful number, since it uses less digits than its factorization.

12520164320504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665343 (or 665339 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 12520164320504 in words is "twelve trillion, five hundred twenty billion, one hundred sixty-four million, three hundred twenty thousand, five hundred four".