664824488 has 16 divisors (see below), whose sum is σ = 1247400000. Its totient is φ = 332184496.

The previous prime is 664824487. The next prime is 664824493. The reversal of 664824488 is 884428466.

It is not an unprimeable number, because it can be changed into a prime (664824487) 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 3 ways as a sum of consecutive naturals, for example, 15728 + ... + 39711.

It is an arithmetic number, because the mean of its divisors is an integer number (77962500).

Almost surely, 2^664824488 is an apocalyptic number.

It is an amenable number.

664824488 is a deficient number, since it is larger than the sum of its proper divisors (582575512).

664824488 is a wasteful number, since it uses less digits than its factorization.

664824488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56944 (or 56940 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 50.

The square root of 664824488 is about 25784.1906601700. The cubic root of 664824488 is about 872.7750767980.

The spelling of 664824488 in words is "six hundred sixty-four million, eight hundred twenty-four thousand, four hundred eighty-eight".