13566980 has 24 divisors (see below), whose sum is σ = 32561088. Its totient is φ = 4651488.

The previous prime is 13566953. The next prime is 13566997. The reversal of 13566980 is 8966531.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48314 + ... + 48593.

It is an arithmetic number, because the mean of its divisors is an integer number (1356712).

Almost surely, 2^13566980 is an apocalyptic number.

13566980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13566980 is an abundant number, since it is smaller than the sum of its proper divisors (18994108).

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

13566980 is a wasteful number, since it uses less digits than its factorization.

13566980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96923 (or 96921 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 13566980 is about 3683.3381598762. The cubic root of 13566980 is about 238.5033013650.

The spelling of 13566980 in words is "thirteen million, five hundred sixty-six thousand, nine hundred eighty".