663306616 has 32 divisors (see below), whose sum is σ = 1440851040. Its totient is φ = 280378368.

The previous prime is 663306577. The next prime is 663306617. The reversal of 663306616 is 616603366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663306617) 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, 77041 + ... + 85216.

It is an arithmetic number, because the mean of its divisors is an integer number (45026595).

Almost surely, 2^663306616 is an apocalyptic number.

It is an amenable number.

663306616 is an abundant number, since it is smaller than the sum of its proper divisors (777544424).

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

663306616 is a wasteful number, since it uses less digits than its factorization.

663306616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162343 (or 162339 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 663306616 is about 25754.7396802996. The cubic root of 663306616 is about 872.1103548297.

The spelling of 663306616 in words is "six hundred sixty-three million, three hundred six thousand, six hundred sixteen".