13520664 has 24 divisors (see below), whose sum is σ = 36618660. Its totient is φ = 4506864.

The previous prime is 13520659. The next prime is 13520677. The reversal of 13520664 is 46602531.

13520664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93822 + ... + 93965.

Almost surely, 2^13520664 is an apocalyptic number.

It is an amenable number.

13520664 is an abundant number, since it is smaller than the sum of its proper divisors (23097996).

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

13520664 is a wasteful number, since it uses less digits than its factorization.

13520664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187799 (or 187792 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 13520664 is about 3677.0455531581. The cubic root of 13520664 is about 238.2315849553.

The spelling of 13520664 in words is "thirteen million, five hundred twenty thousand, six hundred sixty-four".