664500675 has 24 divisors (see below), whose sum is σ = 1163269296. Its totient is φ = 333552640.

The previous prime is 664500647. The next prime is 664500713. The reversal of 664500675 is 576005466.

It is not a de Polignac number, because 664500675 - 2⁵ = 664500643 is a prime.

It is a super-2 number, since 2×664500675² = 883122294150911250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259314 + ... + 261863.

It is an arithmetic number, because the mean of its divisors is an integer number (48469554).

Almost surely, 2^664500675 is an apocalyptic number.

664500675 is a deficient number, since it is larger than the sum of its proper divisors (498768621).

664500675 is a wasteful number, since it uses less digits than its factorization.

664500675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521207 (or 521202 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 664500675 is about 25777.9106019088. The cubic root of 664500675 is about 872.6333542745.

The spelling of 664500675 in words is "six hundred sixty-four million, five hundred thousand, six hundred seventy-five".