13606664 has 16 divisors (see below), whose sum is σ = 27013500. Its totient is φ = 6403072.

The previous prime is 13606661. The next prime is 13606673. The reversal of 13606664 is 46660631.

It can be written as a sum of positive squares in 2 ways, for example, as 13032100 + 574564 = 3610^2 + 758^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13606664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13606661) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 49889 + ... + 50160.

Almost surely, 2^13606664 is an apocalyptic number.

It is an amenable number.

13606664 is a deficient number, since it is larger than the sum of its proper divisors (13406836).

13606664 is a wasteful number, since it uses less digits than its factorization.

13606664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100072 (or 100068 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 13606664 is about 3688.7211876204. The cubic root of 13606664 is about 238.7356191369.

The spelling of 13606664 in words is "thirteen million, six hundred six thousand, six hundred sixty-four".