218033815000 has 40 divisors (see below), whose sum is σ = 510853240260. Its totient is φ = 87213524000.

The previous prime is 218033814989. The next prime is 218033815003. The reversal of 218033815000 is 518330812.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218033815003) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 21798382 + ... + 21808381.

Almost surely, 2^218033815000 is an apocalyptic number.

218033815000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218033815000 is an abundant number, since it is smaller than the sum of its proper divisors (292819425260).

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

218033815000 is an equidigital number, since it uses as much as digits as its factorization.

218033815000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43606789 (or 43606770 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 218033815000 in words is "two hundred eighteen billion, thirty-three million, eight hundred fifteen thousand".