13643426135664 has 120 divisors (see below), whose sum is σ = 41290393256112. Its totient is φ = 4180558141440.

The previous prime is 13643426135659. The next prime is 13643426135671. The reversal of 13643426135664 is 46653162434631.

13643426135664 is a `hidden beast` number, since 1 + 3 + 6 + 43 + 4 + 26 + 13 + 566 + 4 = 666.

13643426135664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13643426135664² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13643426135664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14669502 + ... + 15571805.

Almost surely, 2^{13643426135664} is an apocalyptic number.

It is an amenable number.

13643426135664 is an abundant number, since it is smaller than the sum of its proper divisors (27646967120448).

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

13643426135664 is a wasteful number, since it uses less digits than its factorization.

13643426135664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30241575 (or 30241566 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 54.

The spelling of 13643426135664 in words is "thirteen trillion, six hundred forty-three billion, four hundred twenty-six million, one hundred thirty-five thousand, six hundred sixty-four".