220663632 has 40 divisors (see below), whose sum is σ = 651484096. Its totient is φ = 63046656.

The previous prime is 220663627. The next prime is 220663661. The reversal of 220663632 is 236366022.

It is a self number, because there is not a number n which added to its sum of digits gives 220663632.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 328033 + ... + 328704.

Almost surely, 2^220663632 is an apocalyptic number.

It is an amenable number.

220663632 is an abundant number, since it is smaller than the sum of its proper divisors (430820464).

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

220663632 is a wasteful number, since it uses less digits than its factorization.

220663632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656755 (or 656749 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 220663632 is about 14854.7511591410. The cubic root of 220663632 is about 604.2874675060.

The spelling of 220663632 in words is "two hundred twenty million, six hundred sixty-three thousand, six hundred thirty-two".