18216293068116 has 864 divisors, whose sum is σ = 59464870133760. Its totient is φ = 4656180672000.

The previous prime is 18216293068109. The next prime is 18216293068123. The reversal of 18216293068116 is 61186039261281.

It is a happy number.

18216293068116 is a `hidden beast` number, since 1 + 8 + 2 + 1 + 629 + 3 + 0 + 6 + 8 + 1 + 1 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (18216293068109) and next prime (18216293068123).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3189682501 + ... + 3189688211.

Almost surely, 2^{18216293068116} 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 18216293068116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29732435066880).

18216293068116 is an abundant number, since it is smaller than the sum of its proper divisors (41248577065644).

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

18216293068116 is a wasteful number, since it uses less digits than its factorization.

18216293068116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889 (or 5873 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 18216293068116 in words is "eighteen trillion, two hundred sixteen billion, two hundred ninety-three million, sixty-eight thousand, one hundred sixteen".