218550051870 has 64 divisors (see below), whose sum is σ = 537395826240. Its totient is φ = 56849817600.

The previous prime is 218550051859. The next prime is 218550051877. The reversal of 218550051870 is 78150055812.

218550051870 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218550051877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13188390 + ... + 13204950.

It is an arithmetic number, because the mean of its divisors is an integer number (8396809785).

Almost surely, 2^218550051870 is an apocalyptic number.

218550051870 is an abundant number, since it is smaller than the sum of its proper divisors (318845774370).

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

218550051870 is a wasteful number, since it uses less digits than its factorization.

218550051870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27341.

The product of its (nonzero) digits is 112000, while the sum is 42.

The spelling of 218550051870 in words is "two hundred eighteen billion, five hundred fifty million, fifty-one thousand, eight hundred seventy".