13333664 has 12 divisors (see below), whose sum is σ = 26250714. Its totient is φ = 6666816.

The previous prime is 13333657. The next prime is 13333679. The reversal of 13333664 is 46633331.

It can be written as a sum of positive squares in only one way, i.e., 10837264 + 2496400 = 3292^2 + 1580^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208307 + ... + 208370.

Almost surely, 2^13333664 is an apocalyptic number.

It is an amenable number.

13333664 is a deficient number, since it is larger than the sum of its proper divisors (12917050).

13333664 is an equidigital number, since it uses as much as digits as its factorization.

13333664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416687 (or 416679 counting only the distinct ones).

The product of its digits is 11664, while the sum is 29.

The square root of 13333664 is about 3651.5289948185. The cubic root of 13333664 is about 237.1281805266.

Adding to 13333664 its reverse (46633331), we get a palindrome (59966995).

The spelling of 13333664 in words is "thirteen million, three hundred thirty-three thousand, six hundred sixty-four".