220727164 has 18 divisors (see below), whose sum is σ = 449337840. Its totient is φ = 94597272.

The previous prime is 220727153. The next prime is 220727183. The reversal of 220727164 is 461727022.

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 5 ways as a sum of consecutive naturals, for example, 562884 + ... + 563275.

Almost surely, 2^220727164 is an apocalyptic number.

It is an amenable number.

220727164 is an abundant number, since it is smaller than the sum of its proper divisors (228610676).

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

220727164 is a wasteful number, since it uses less digits than its factorization.

220727164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126177 (or 1126168 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 220727164 is about 14856.8894456410. The cubic root of 220727164 is about 604.3454560791.

The spelling of 220727164 in words is "two hundred twenty million, seven hundred twenty-seven thousand, one hundred sixty-four".