12559664135 has 16 divisors (see below), whose sum is σ = 15361946784. Its totient is φ = 9854312832.

The previous prime is 12559664123. The next prime is 12559664153. The reversal of 12559664135 is 53146695521.

It is a cyclic number.

It is not a de Polignac number, because 12559664135 - 2²² = 12555469831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12559664135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 809309 + ... + 824681.

It is an arithmetic number, because the mean of its divisors is an integer number (960121674).

Almost surely, 2^12559664135 is an apocalyptic number.

12559664135 is a deficient number, since it is larger than the sum of its proper divisors (2802282649).

12559664135 is a wasteful number, since it uses less digits than its factorization.

12559664135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18514.

The product of its digits is 972000, while the sum is 47.

The spelling of 12559664135 in words is "twelve billion, five hundred fifty-nine million, six hundred sixty-four thousand, one hundred thirty-five".