664265211 has 8 divisors (see below), whose sum is σ = 888536064. Its totient is φ = 441418920.

The previous prime is 664265201. The next prime is 664265219. The reversal of 664265211 is 112562466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 664265211 - 2⁷ = 664265083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664265219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355051 + ... + 356916.

It is an arithmetic number, because the mean of its divisors is an integer number (111067008).

Almost surely, 2^664265211 is an apocalyptic number.

664265211 is a deficient number, since it is larger than the sum of its proper divisors (224270853).

664265211 is a wasteful number, since it uses less digits than its factorization.

664265211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712281.

The product of its digits is 17280, while the sum is 33.

The square root of 664265211 is about 25773.3430311242. The cubic root of 664265211 is about 872.5302703488.

The spelling of 664265211 in words is "six hundred sixty-four million, two hundred sixty-five thousand, two hundred eleven".