663607630 has 32 divisors (see below), whose sum is σ = 1367616960. Its totient is φ = 227109120.

The previous prime is 663607621. The next prime is 663607643. The reversal of 663607630 is 36706366.

It is a self number, because there is not a number n which added to its sum of digits gives 663607630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31500 + ... + 48160.

It is an arithmetic number, because the mean of its divisors is an integer number (42738030).

Almost surely, 2^663607630 is an apocalyptic number.

663607630 is an abundant number, since it is smaller than the sum of its proper divisors (704009330).

663607630 is a wasteful number, since it uses less digits than its factorization.

663607630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17244.

The product of its (nonzero) digits is 81648, while the sum is 37.

The square root of 663607630 is about 25760.5828738404. The cubic root of 663607630 is about 872.2422584970.

The spelling of 663607630 in words is "six hundred sixty-three million, six hundred seven thousand, six hundred thirty".