13566116 has 12 divisors (see below), whose sum is σ = 23788380. Its totient is φ = 6769440.

The previous prime is 13566109. The next prime is 13566169. The reversal of 13566116 is 61166531.

It can be written as a sum of positive squares in 2 ways, for example, as 4840000 + 8726116 = 2200^2 + 2954^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971 + ... + 5298.

It is an arithmetic number, because the mean of its divisors is an integer number (1982365).

Almost surely, 2^13566116 is an apocalyptic number.

It is an amenable number.

13566116 is a deficient number, since it is larger than the sum of its proper divisors (10222264).

13566116 is a wasteful number, since it uses less digits than its factorization.

13566116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814 (or 6812 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 13566116 is about 3683.2208730946. The cubic root of 13566116 is about 238.4982383068.

The spelling of 13566116 in words is "thirteen million, five hundred sixty-six thousand, one hundred sixteen".