13652666 has 16 divisors (see below), whose sum is σ = 21776040. Its totient is φ = 6397440.

The previous prime is 13652651. The next prime is 13652669. The reversal of 13652666 is 66625631.

It can be written as a sum of positive squares in 4 ways, for example, as 11417641 + 2235025 = 3379^2 + 1495^2 .

It is not an unprimeable number, because it can be changed into a prime (13652669) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 8840 + ... + 10268.

Almost surely, 2^13652666 is an apocalyptic number.

13652666 is a deficient number, since it is larger than the sum of its proper divisors (8123374).

13652666 is a wasteful number, since it uses less digits than its factorization.

13652666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729.

The product of its digits is 38880, while the sum is 35.

The square root of 13652666 is about 3694.9514205196. The cubic root of 13652666 is about 239.0043590879.

The spelling of 13652666 in words is "thirteen million, six hundred fifty-two thousand, six hundred sixty-six".