13613325606656 has 36 divisors (see below), whose sum is σ = 27201118075152. Its totient is φ = 6799738300416.

The previous prime is 13613325606533. The next prime is 13613325606677. The reversal of 13613325606656 is 65660652331631.

It is a happy number.

13613325606656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13613325606598 and 13613325606607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26796701 + ... + 27299996.

Almost surely, 2^{13613325606656} is an apocalyptic number.

13613325606656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13613325606656 is a deficient number, since it is larger than the sum of its proper divisors (13587792468496).

13613325606656 is an frugal number, since it uses more digits than its factorization.

13613325606656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54097696 (or 54097682 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 53.

The spelling of 13613325606656 in words is "thirteen trillion, six hundred thirteen billion, three hundred twenty-five million, six hundred six thousand, six hundred fifty-six".