18223202304 has 126 divisors (see below), whose sum is σ = 52672044516. Its totient is φ = 6071255040.

The previous prime is 18223202299. The next prime is 18223202311. The reversal of 18223202304 is 40320232281.

18223202304 is a `hidden beast` number, since 18 + 22 + 320 + 2 + 304 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9436219 + ... + 9438149.

Almost surely, 2^18223202304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18223202304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26336022258).

18223202304 is an abundant number, since it is smaller than the sum of its proper divisors (34448842212).

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

18223202304 is an frugal number, since it uses more digits than its factorization.

18223202304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977 (or 1936 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 18223202304 its reverse (40320232281), we get a palindrome (58543434585).

It can be divided in two parts, 18 and 223202304, that added together give a palindrome (223202322).

The spelling of 18223202304 in words is "eighteen billion, two hundred twenty-three million, two hundred two thousand, three hundred four".