136690222218 has 48 divisors (see below), whose sum is σ = 316307984160. Its totient is φ = 39241208160.

The previous prime is 136690222169. The next prime is 136690222259. The reversal of 136690222218 is 812222096631.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 136690222218.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4940905 + ... + 4968492.

It is an arithmetic number, because the mean of its divisors is an integer number (6589749670).

Almost surely, 2^136690222218 is an apocalyptic number.

136690222218 is an abundant number, since it is smaller than the sum of its proper divisors (179617761942).

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

136690222218 is a wasteful number, since it uses less digits than its factorization.

136690222218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9909443 (or 9909432 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 136690222218 in words is "one hundred thirty-six billion, six hundred ninety million, two hundred twenty-two thousand, two hundred eighteen".