220553644 has 6 divisors (see below), whose sum is σ = 385968884. Its totient is φ = 110276820.

The previous prime is 220553629. The next prime is 220553687. The reversal of 220553644 is 446355022.

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 as a sum of consecutive naturals, namely, 27569202 + ... + 27569209.

Almost surely, 2^220553644 is an apocalyptic number.

It is an amenable number.

220553644 is a deficient number, since it is larger than the sum of its proper divisors (165415240).

220553644 is a wasteful number, since it uses less digits than its factorization.

220553644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55138415 (or 55138413 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 220553644 is about 14851.0485825076. The cubic root of 220553644 is about 604.1870500889.

The spelling of 220553644 in words is "two hundred twenty million, five hundred fifty-three thousand, six hundred forty-four".