222555564 has 72 divisors (see below), whose sum is σ = 701395968. Its totient is φ = 57805920.

The previous prime is 222555559. The next prime is 222555581. The reversal of 222555564 is 465555222.

222555564 is a `hidden beast` number, since 22 + 25 + 55 + 564 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37372 + ... + 42915.

Almost surely, 2^222555564 is an apocalyptic number.

It is an amenable number.

222555564 is an abundant number, since it is smaller than the sum of its proper divisors (478840404).

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

222555564 is a wasteful number, since it uses less digits than its factorization.

222555564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80315 (or 80310 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 222555564 is about 14918.2962834233. The cubic root of 222555564 is about 606.0095740735.

The spelling of 222555564 in words is "two hundred twenty-two million, five hundred fifty-five thousand, five hundred sixty-four".