13649166 has 24 divisors (see below), whose sum is σ = 30859920. Its totient is φ = 4351776.

The previous prime is 13649159. The next prime is 13649183. The reversal of 13649166 is 66194631.

13649166 is a `hidden beast` number, since 1 + 3 + 649 + 1 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 13649166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16071 + ... + 16898.

It is an arithmetic number, because the mean of its divisors is an integer number (1285830).

Almost surely, 2^13649166 is an apocalyptic number.

13649166 is an abundant number, since it is smaller than the sum of its proper divisors (17210754).

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

13649166 is a wasteful number, since it uses less digits than its factorization.

13649166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33000 (or 32997 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 13649166 is about 3694.4777709441. The cubic root of 13649166 is about 238.9839336083.

The spelling of 13649166 in words is "thirteen million, six hundred forty-nine thousand, one hundred sixty-six".