18363223016 has 16 divisors (see below), whose sum is σ = 34520947200. Its totient is φ = 9157637104.

The previous prime is 18363222959. The next prime is 18363223117. The reversal of 18363223016 is 61032236381.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2993546 + ... + 2999673.

It is an arithmetic number, because the mean of its divisors is an integer number (2157559200).

Almost surely, 2^18363223016 is an apocalyptic number.

It is an amenable number.

18363223016 is a deficient number, since it is larger than the sum of its proper divisors (16157724184).

18363223016 is a wasteful number, since it uses less digits than its factorization.

18363223016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5993608 (or 5993604 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

Adding to 18363223016 its reverse (61032236381), we get a palindrome (79395459397).

The spelling of 18363223016 in words is "eighteen billion, three hundred sixty-three million, two hundred twenty-three thousand, sixteen".