18443088066 has 128 divisors (see below), whose sum is σ = 42362288640. Its totient is φ = 5312563200.

The previous prime is 18443088023. The next prime is 18443088071. The reversal of 18443088066 is 66088034481.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10071771 + ... + 10073601.

It is an arithmetic number, because the mean of its divisors is an integer number (330955380).

Almost surely, 2^18443088066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18443088066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21181144320).

18443088066 is an abundant number, since it is smaller than the sum of its proper divisors (23919200574).

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

18443088066 is a wasteful number, since it uses less digits than its factorization.

18443088066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 18443088066 in words is "eighteen billion, four hundred forty-three million, eighty-eight thousand, sixty-six".