664033100 has 18 divisors (see below), whose sum is σ = 1440952044. Its totient is φ = 265613200.

The previous prime is 664033091. The next prime is 664033127. The reversal of 664033100 is 1330466.

664033100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×664033100² = 881879915791220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3320066 + ... + 3320265.

Almost surely, 2^664033100 is an apocalyptic number.

It is an amenable number.

664033100 is an abundant number, since it is smaller than the sum of its proper divisors (776918944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664033100 is a wasteful number, since it uses less digits than its factorization.

664033100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6640345 (or 6640338 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 664033100 is about 25768.8397100063. The cubic root of 664033100 is about 872.4286304898.

Adding to 664033100 its reverse (1330466), we get a palindrome (665363566).

The spelling of 664033100 in words is "six hundred sixty-four million, thirty-three thousand, one hundred".