18564002222 has 8 divisors (see below), whose sum is σ = 28525174272. Its totient is φ = 9055610800.

The previous prime is 18564002207. The next prime is 18564002257. The reversal of 18564002222 is 22220046581.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 113195054 + ... + 113195217.

It is an arithmetic number, because the mean of its divisors is an integer number (3565646784).

Almost surely, 2^18564002222 is an apocalyptic number.

18564002222 is a deficient number, since it is larger than the sum of its proper divisors (9961172050).

18564002222 is a wasteful number, since it uses less digits than its factorization.

18564002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226390314.

The product of its (nonzero) digits is 15360, while the sum is 32.

The spelling of 18564002222 in words is "eighteen billion, five hundred sixty-four million, two thousand, two hundred twenty-two".