13206664 has 16 divisors (see below), whose sum is σ = 24803100. Its totient is φ = 6592512.

The previous prime is 13206631. The next prime is 13206679. The reversal of 13206664 is 46660231.

It can be written as a sum of positive squares in 2 ways, for example, as 11902500 + 1304164 = 3450^2 + 1142^2 .

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, 6544 + ... + 8320.

Almost surely, 2^13206664 is an apocalyptic number.

It is an amenable number.

13206664 is a deficient number, since it is larger than the sum of its proper divisors (11596436).

13206664 is a wasteful number, since it uses less digits than its factorization.

13206664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712 (or 2708 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 13206664 is about 3634.0974120131. The cubic root of 13206664 is about 236.3729142135.

Adding to 13206664 its reverse (46660231), we get a palindrome (59866895).

The spelling of 13206664 in words is "thirteen million, two hundred six thousand, six hundred sixty-four".