13256215362063 has 12 divisors (see below), whose sum is σ = 20274211730448. Its totient is φ = 8317625325120.

The previous prime is 13256215362031. The next prime is 13256215362133. The reversal of 13256215362063 is 36026351265231.

13256215362063 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 6 + 2 + 15 + 3 + 620 + 6 + 3 = 666.

It is not a de Polignac number, because 13256215362063 - 2⁵ = 13256215362031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13256215362563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43320965083 + ... + 43320965388.

It is an arithmetic number, because the mean of its divisors is an integer number (1689517644204).

Almost surely, 2^{13256215362063} is an apocalyptic number.

13256215362063 is a deficient number, since it is larger than the sum of its proper divisors (7017996368385).

13256215362063 is a wasteful number, since it uses less digits than its factorization.

13256215362063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86641930494 (or 86641930491 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 13256215362063 in words is "thirteen trillion, two hundred fifty-six billion, two hundred fifteen million, three hundred sixty-two thousand, sixty-three".