12664175539 has 2 divisors, whose sum is σ = 12664175540. Its totient is φ = 12664175538.

The previous prime is 12664175509. The next prime is 12664175543. The reversal of 12664175539 is 93557146621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12664175539 - 2¹¹ = 12664173491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12664175492 and 12664175501.

It is not a weakly prime, because it can be changed into another prime (12664175509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6332087769 + 6332087770.

It is an arithmetic number, because the mean of its divisors is an integer number (6332087770).

Almost surely, 2^12664175539 is an apocalyptic number.

12664175539 is a deficient number, since it is larger than the sum of its proper divisors (1).

12664175539 is an equidigital number, since it uses as much as digits as its factorization.

12664175539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 49.

The spelling of 12664175539 in words is "twelve billion, six hundred sixty-four million, one hundred seventy-five thousand, five hundred thirty-nine".