13461621153656 has 32 divisors (see below), whose sum is σ = 27182802875760. Its totient is φ = 6212899748352.

The previous prime is 13461621153653. The next prime is 13461621153683. The reversal of 13461621153656 is 65635112616431.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13461621153653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2582816 + ... + 5796048.

Almost surely, 2^{13461621153656} is an apocalyptic number.

It is an amenable number.

13461621153656 is an abundant number, since it is smaller than the sum of its proper divisors (13721181722104).

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

13461621153656 is a wasteful number, since it uses less digits than its factorization.

13461621153656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253535 (or 3253531 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 50.

The spelling of 13461621153656 in words is "thirteen trillion, four hundred sixty-one billion, six hundred twenty-one million, one hundred fifty-three thousand, six hundred fifty-six".