13256013056554 has 16 divisors (see below), whose sum is σ = 20061559718280. Its totient is φ = 6569350173120.

The previous prime is 13256013056443. The next prime is 13256013056579. The reversal of 13256013056554 is 45565031065231.

It can be written as a sum of positive squares in 4 ways, for example, as 4006294474329 + 9249718582225 = 2001573^2 + 3041335^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589024 + ... + 5182564.

Almost surely, 2^{13256013056554} is an apocalyptic number.

13256013056554 is a deficient number, since it is larger than the sum of its proper divisors (6805546661726).

13256013056554 is an frugal number, since it uses more digits than its factorization.

13256013056554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4593882 (or 4593656 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 13256013056554 in words is "thirteen trillion, two hundred fifty-six billion, thirteen million, fifty-six thousand, five hundred fifty-four".