218017804086120 has 64 divisors (see below), whose sum is σ = 654064275061440. Its totient is φ = 58137115507200.

The previous prime is 218017804086097. The next prime is 218017804086149. The reversal of 218017804086120 is 21680408710812.

It is a self number, because there is not a number n which added to its sum of digits gives 218017804086120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7817341 + ... + 22296780.

It is an arithmetic number, because the mean of its divisors is an integer number (10219754297835).

Almost surely, 2^{218017804086120} is an apocalyptic number.

218017804086120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218017804086120 is an abundant number, since it is smaller than the sum of its proper divisors (436046470975320).

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

218017804086120 is a wasteful number, since it uses less digits than its factorization.

218017804086120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30174466 (or 30174462 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 48.

The spelling of 218017804086120 in words is "two hundred eighteen trillion, seventeen billion, eight hundred four million, eighty-six thousand, one hundred twenty".