218079899136 has 720 divisors, whose sum is σ = 734671018224. Its totient is φ = 62224588800.

The previous prime is 218079899119. The next prime is 218079899153. The reversal of 218079899136 is 631998970812.

218079899136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (218079899119) and next prime (218079899153).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5894051310 + ... + 5894051346.

Almost surely, 2^218079899136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218079899136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367335509112).

218079899136 is an abundant number, since it is smaller than the sum of its proper divisors (516591119088).

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

218079899136 is an equidigital number, since it uses as much as digits as its factorization.

218079899136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 63.

The spelling of 218079899136 in words is "two hundred eighteen billion, seventy-nine million, eight hundred ninety-nine thousand, one hundred thirty-six".