13664266 has 16 divisors (see below), whose sum is σ = 25554240. Its totient is φ = 5323680.

The previous prime is 13664257. The next prime is 13664279. The reversal of 13664266 is 66246631.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44211 + ... + 44518.

It is an arithmetic number, because the mean of its divisors is an integer number (1597140).

Almost surely, 2^13664266 is an apocalyptic number.

13664266 is a deficient number, since it is larger than the sum of its proper divisors (11889974).

13664266 is a wasteful number, since it uses less digits than its factorization.

13664266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88749.

The product of its digits is 31104, while the sum is 34.

The square root of 13664266 is about 3696.5207966411. The cubic root of 13664266 is about 239.0720300158.

The spelling of 13664266 in words is "thirteen million, six hundred sixty-four thousand, two hundred sixty-six".