204870118086 has 192 divisors, whose sum is σ = 484126156800. Its totient is φ = 62411731200.

The previous prime is 204870118073. The next prime is 204870118169. The reversal of 204870118086 is 680811078402.

204870118086 is a `hidden beast` number, since 2 + 0 + 487 + 0 + 11 + 80 + 86 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 324674991 + ... + 324675621.

It is an arithmetic number, because the mean of its divisors is an integer number (2521490400).

Almost surely, 2^204870118086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204870118086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242063078400).

204870118086 is an abundant number, since it is smaller than the sum of its proper divisors (279256038714).

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

204870118086 is a wasteful number, since it uses less digits than its factorization.

204870118086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The spelling of 204870118086 in words is "two hundred four billion, eight hundred seventy million, one hundred eighteen thousand, eighty-six".