18118947480060 has 384 divisors, whose sum is σ = 63710760960000. Its totient is φ = 3751444730880.

The previous prime is 18118947480031. The next prime is 18118947480077. The reversal of 18118947480060 is 6008474981181.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 504533505 + ... + 504569415.

It is an arithmetic number, because the mean of its divisors is an integer number (165913440000).

Almost surely, 2^{18118947480060} is an apocalyptic number.

18118947480060 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 18118947480060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31855380480000).

18118947480060 is an abundant number, since it is smaller than the sum of its proper divisors (45591813479940).

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

18118947480060 is a wasteful number, since it uses less digits than its factorization.

18118947480060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38721 (or 38719 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 57.

The spelling of 18118947480060 in words is "eighteen trillion, one hundred eighteen billion, nine hundred forty-seven million, four hundred eighty thousand, sixty".