663324072 has 32 divisors (see below), whose sum is σ = 1659329280. Its totient is φ = 220972160.

The previous prime is 663324043. The next prime is 663324073. The reversal of 663324072 is 270423366.

It is a super-2 number, since 2×663324072² = 879997648989322368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (663324073) 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 7 ways as a sum of consecutive naturals, for example, 36172 + ... + 51332.

It is an arithmetic number, because the mean of its divisors is an integer number (51854040).

Almost surely, 2^663324072 is an apocalyptic number.

It is an amenable number.

663324072 is an abundant number, since it is smaller than the sum of its proper divisors (996005208).

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

663324072 is a wasteful number, since it uses less digits than its factorization.

663324072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16993 (or 16989 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 663324072 is about 25755.0785671487. The cubic root of 663324072 is about 872.1180051001.

The spelling of 663324072 in words is "six hundred sixty-three million, three hundred twenty-four thousand, seventy-two".