13320556560 has 120 divisors (see below), whose sum is σ = 45301326720. Its totient is φ = 3507169536.

The previous prime is 13320556549. The next prime is 13320556577. The reversal of 13320556560 is 6565502331.

13320556560 is a `hidden beast` number, since 1 + 3 + 32 + 0 + 5 + 565 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 60214 + ... + 173973.

It is an arithmetic number, because the mean of its divisors is an integer number (377511056).

Almost surely, 2^13320556560 is an apocalyptic number.

13320556560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320556560 is an abundant number, since it is smaller than the sum of its proper divisors (31980770160).

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

13320556560 is a wasteful number, since it uses less digits than its factorization.

13320556560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234285 (or 234276 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 13320556560 in words is "thirteen billion, three hundred twenty million, five hundred fifty-six thousand, five hundred sixty".