13655981319216 has 80 divisors (see below), whose sum is σ = 36281610756864. Its totient is φ = 4423564115712.

The previous prime is 13655981319139. The next prime is 13655981319247. The reversal of 13655981319216 is 61291318955631.

It is a self number, because there is not a number n which added to its sum of digits gives 13655981319216.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16385956 + ... + 17199171.

Almost surely, 2^{13655981319216} is an apocalyptic number.

13655981319216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13655981319216 is an abundant number, since it is smaller than the sum of its proper divisors (22625629437648).

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

13655981319216 is a wasteful number, since it uses less digits than its factorization.

13655981319216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33585378 (or 33585372 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 60.

The spelling of 13655981319216 in words is "thirteen trillion, six hundred fifty-five billion, nine hundred eighty-one million, three hundred nineteen thousand, two hundred sixteen".