220755996 has 24 divisors (see below), whose sum is σ = 572330640. Its totient is φ = 73585296.

The previous prime is 220755989. The next prime is 220756031. The reversal of 220755996 is 699557022.

220755996 is a `hidden beast` number, since 2 + 2 + 0 + 7 + 559 + 96 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021911 + ... + 1022126.

It is an arithmetic number, because the mean of its divisors is an integer number (23847110).

Almost surely, 2^220755996 is an apocalyptic number.

It is an amenable number.

220755996 is an abundant number, since it is smaller than the sum of its proper divisors (351574644).

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

220755996 is a wasteful number, since it uses less digits than its factorization.

220755996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044050 (or 2044042 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 220755996 is about 14857.8597381992. The cubic root of 220755996 is about 604.3717686985.

The spelling of 220755996 in words is "two hundred twenty million, seven hundred fifty-five thousand, nine hundred ninety-six".