13581356680 has 32 divisors (see below), whose sum is σ = 31543799040. Its totient is φ = 5257298880.

The previous prime is 13581356671. The next prime is 13581356699. The reversal of 13581356680 is 8665318531.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13581356680.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5475114 + ... + 5477593.

It is an arithmetic number, because the mean of its divisors is an integer number (985743720).

Almost surely, 2^13581356680 is an apocalyptic number.

13581356680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13581356680 is an abundant number, since it is smaller than the sum of its proper divisors (17962442360).

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

13581356680 is a wasteful number, since it uses less digits than its factorization.

13581356680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10952749 (or 10952745 counting only the distinct ones).

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

The spelling of 13581356680 in words is "thirteen billion, five hundred eighty-one million, three hundred fifty-six thousand, six hundred eighty".