18016530018036 has 96 divisors (see below), whose sum is σ = 46535893770240. Its totient is φ = 5379220022400.

The previous prime is 18016530018029. The next prime is 18016530018043. The reversal of 18016530018036 is 63081003561081.

It is an interprime number because it is at equal distance from previous prime (18016530018029) and next prime (18016530018043).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14072530 + ... + 15299318.

It is an arithmetic number, because the mean of its divisors is an integer number (484748893440).

Almost surely, 2^{18016530018036} 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 18016530018036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23267946885120).

18016530018036 is an abundant number, since it is smaller than the sum of its proper divisors (28519363752204).

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

18016530018036 is a wasteful number, since it uses less digits than its factorization.

18016530018036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228445 (or 1228443 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 18016530018036 in words is "eighteen trillion, sixteen billion, five hundred thirty million, eighteen thousand, thirty-six".