663336072 has 48 divisors (see below), whose sum is σ = 2053184640. Its totient is φ = 189524448.

The previous prime is 663336059. The next prime is 663336097. The reversal of 663336072 is 270633366.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 657568 + ... + 658575.

It is an arithmetic number, because the mean of its divisors is an integer number (42774680).

Almost surely, 2^663336072 is an apocalyptic number.

It is an amenable number.

663336072 is an abundant number, since it is smaller than the sum of its proper divisors (1389848568).

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

663336072 is a wasteful number, since it uses less digits than its factorization.

663336072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316162 (or 1316155 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 36.

The square root of 663336072 is about 25755.3115298573. The cubic root of 663336072 is about 872.1232641448.

The spelling of 663336072 in words is "six hundred sixty-three million, three hundred thirty-six thousand, seventy-two".