664162317 has 36 divisors (see below), whose sum is σ = 1201827900. Its totient is φ = 350324352.

The previous prime is 664162313. The next prime is 664162333. The reversal of 664162317 is 713261466.

It is a happy number.

664162317 is a `hidden beast` number, since 6 + 6 + 416 + 231 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 315630756 + 348531561 = 17766^2 + 18669^2 .

It is not a de Polignac number, because 664162317 - 2² = 664162313 is a prime.

It is a super-2 number, since 2×664162317² = 882223166645616978, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664162313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 52192 + ... + 63657.

Almost surely, 2^664162317 is an apocalyptic number.

It is an amenable number.

664162317 is a deficient number, since it is larger than the sum of its proper divisors (537665583).

664162317 is a wasteful number, since it uses less digits than its factorization.

664162317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115882 (or 115872 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 664162317 is about 25771.3468216157. The cubic root of 664162317 is about 872.4852166744.

The spelling of 664162317 in words is "six hundred sixty-four million, one hundred sixty-two thousand, three hundred seventeen".