18568322080 has 192 divisors, whose sum is σ = 57909987072. Its totient is φ = 5447024640.

The previous prime is 18568322053. The next prime is 18568322081. The reversal of 18568322080 is 8022386581.

It is not an unprimeable number, because it can be changed into a prime (18568322081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165112 + ... + 253768.

It is an arithmetic number, because the mean of its divisors is an integer number (301614516).

Almost surely, 2^18568322080 is an apocalyptic number.

18568322080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18568322080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28954993536).

18568322080 is an abundant number, since it is smaller than the sum of its proper divisors (39341664992).

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

18568322080 is a wasteful number, since it uses less digits than its factorization.

18568322080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88707 (or 88699 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 18568322080 in words is "eighteen billion, five hundred sixty-eight million, three hundred twenty-two thousand, eighty".