13556696891364 has 81 divisors (see below), whose sum is σ = 37667503135171. Its totient is φ = 4108016328240.

The previous prime is 13556696891359. The next prime is 13556696891369. The reversal of 13556696891364 is 46319869665531.

The square root of 13556696891364 is 3681942.

It is a perfect power (a square), and thus also a powerful number.

13556696891364 is a `hidden beast` number, since 1 + 3 + 556 + 6 + 9 + 6 + 8 + 9 + 1 + 3 + 64 = 666.

13556696891364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13556696891359) and next prime (13556696891369).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13556696891292 and 13556696891301.

It is not an unprimeable number, because it can be changed into a prime (13556696891369) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 242980279 + ... + 243036065.

Almost surely, 2^{13556696891364} is an apocalyptic number.

13556696891364 is the 3681942-nd square number.

It is an amenable number.

13556696891364 is an abundant number, since it is smaller than the sum of its proper divisors (24110806243807).

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

13556696891364 is an frugal number, since it uses more digits than its factorization.

13556696891364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111606 (or 55803 counting only the distinct ones).

The product of its digits is 755827200, while the sum is 72.

The spelling of 13556696891364 in words is "thirteen trillion, five hundred fifty-six billion, six hundred ninety-six million, eight hundred ninety-one thousand, three hundred sixty-four".