13256812960456 has 16 divisors (see below), whose sum is σ = 26768564631900. Its totient is φ = 6118529058624.

The previous prime is 13256812960441. The next prime is 13256812960477. The reversal of 13256812960456 is 65406921865231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13016581622500 + 240231337956 = 3607850^2 + 490134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13256812960456.

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 3 ways as a sum of consecutive naturals, for example, 63734677591 + ... + 63734677798.

Almost surely, 2^{13256812960456} is an apocalyptic number.

It is an amenable number.

13256812960456 is an abundant number, since it is smaller than the sum of its proper divisors (13511751671444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13256812960456 is a wasteful number, since it uses less digits than its factorization.

13256812960456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127469355408 (or 127469355404 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 13256812960456 in words is "thirteen trillion, two hundred fifty-six billion, eight hundred twelve million, nine hundred sixty thousand, four hundred fifty-six".