13660523215 has 16 divisors (see below), whose sum is σ = 16688606688. Its totient is φ = 10732386816.

The previous prime is 13660523207. The next prime is 13660523231. The reversal of 13660523215 is 51232506631.

It is a cyclic number.

It is not a de Polignac number, because 13660523215 - 2³ = 13660523207 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4732 + ... + 165358.

It is an arithmetic number, because the mean of its divisors is an integer number (1043037918).

Almost surely, 2^13660523215 is an apocalyptic number.

13660523215 is a deficient number, since it is larger than the sum of its proper divisors (3028083473).

13660523215 is a wasteful number, since it uses less digits than its factorization.

13660523215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160938.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 13660523215 in words is "thirteen billion, six hundred sixty million, five hundred twenty-three thousand, two hundred fifteen".