664272333 has 24 divisors (see below), whose sum is σ = 1008699328. Its totient is φ = 436770144.

The previous prime is 664272317. The next prime is 664272337. The reversal of 664272333 is 333272466.

664272333 is a `hidden beast` number, since 6 + 642 + 7 + 2 + 3 + 3 + 3 = 666.

It is not a de Polignac number, because 664272333 - 2⁴ = 664272317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664272337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 985 + ... + 36462.

Almost surely, 2^664272333 is an apocalyptic number.

It is an amenable number.

664272333 is a deficient number, since it is larger than the sum of its proper divisors (344426995).

664272333 is an equidigital number, since it uses as much as digits as its factorization.

664272333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37535 (or 37523 counting only the distinct ones).

The product of its digits is 108864, while the sum is 36.

The square root of 664272333 is about 25773.4811967650. The cubic root of 664272333 is about 872.5333886507.

The spelling of 664272333 in words is "six hundred sixty-four million, two hundred seventy-two thousand, three hundred thirty-three".