8918564222 has 16 divisors (see below), whose sum is σ = 13551528960. Its totient is φ = 4401424248.

The previous prime is 8918564219. The next prime is 8918564257. The reversal of 8918564222 is 2224658198.

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, 626063 + ... + 640149.

It is an arithmetic number, because the mean of its divisors is an integer number (846970560).

Almost surely, 2^8918564222 is an apocalyptic number.

8918564222 is a deficient number, since it is larger than the sum of its proper divisors (4632964738).

8918564222 is a wasteful number, since it uses less digits than its factorization.

8918564222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18175.

The product of its digits is 552960, while the sum is 47.

The square root of 8918564222 is about 94438.1502466032. The cubic root of 8918564222 is about 2073.7909807530.

The spelling of 8918564222 in words is "eight billion, nine hundred eighteen million, five hundred sixty-four thousand, two hundred twenty-two".