18115754022 has 192 divisors, whose sum is σ = 43885670400. Its totient is φ = 5378503680.

The previous prime is 18115754009. The next prime is 18115754089. The reversal of 18115754022 is 22045751181.

It is a happy number.

18115754022 is a `hidden beast` number, since 1 + 81 + 1 + 575 + 4 + 0 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 68881063 + ... + 68881325.

It is an arithmetic number, because the mean of its divisors is an integer number (228571200).

Almost surely, 2^18115754022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18115754022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21942835200).

18115754022 is an abundant number, since it is smaller than the sum of its proper divisors (25769916378).

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

18115754022 is a wasteful number, since it uses less digits than its factorization.

18115754022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The spelling of 18115754022 in words is "eighteen billion, one hundred fifteen million, seven hundred fifty-four thousand, twenty-two".