13999560165 has 48 divisors (see below), whose sum is σ = 25073118720. Its totient is φ = 7218529920.

The previous prime is 13999560151. The next prime is 13999560173. The reversal of 13999560165 is 56106599931.

It is a happy number.

13999560165 is a `hidden beast` number, since 1 + 399 + 95 + 6 + 0 + 165 = 666.

It is not a de Polignac number, because 13999560165 - 2²⁴ = 13982782949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1618071 + ... + 1626699.

It is an arithmetic number, because the mean of its divisors is an integer number (522356640).

Almost surely, 2^13999560165 is an apocalyptic number.

13999560165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13999560165 is a deficient number, since it is larger than the sum of its proper divisors (11073558555).

13999560165 is a wasteful number, since it uses less digits than its factorization.

13999560165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9834 (or 9831 counting only the distinct ones).

The product of its (nonzero) digits is 1968300, while the sum is 54.

The spelling of 13999560165 in words is "thirteen billion, nine hundred ninety-nine million, five hundred sixty thousand, one hundred sixty-five".