13681155664 has 40 divisors (see below), whose sum is σ = 28933817760. Its totient is φ = 6215088000.

The previous prime is 13681155641. The next prime is 13681155667. The reversal of 13681155664 is 46655118631.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13681155667) 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, 293139 + ... + 336589.

It is an arithmetic number, because the mean of its divisors is an integer number (723345444).

Almost surely, 2^13681155664 is an apocalyptic number.

It is an amenable number.

13681155664 is an abundant number, since it is smaller than the sum of its proper divisors (15252662096).

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

13681155664 is a wasteful number, since it uses less digits than its factorization.

13681155664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45259 (or 45253 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The spelling of 13681155664 in words is "thirteen billion, six hundred eighty-one million, one hundred fifty-five thousand, six hundred sixty-four".