218215472330 has 16 divisors (see below), whose sum is σ = 401145039360. Its totient is φ = 85429035792.

The previous prime is 218215472323. The next prime is 218215472333. The reversal of 218215472330 is 33274512812.

It is not an unprimeable number, because it can be changed into a prime (218215472333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232143650 + ... + 232144589.

It is an arithmetic number, because the mean of its divisors is an integer number (25071564960).

Almost surely, 2^218215472330 is an apocalyptic number.

218215472330 is a deficient number, since it is larger than the sum of its proper divisors (182929567030).

218215472330 is a wasteful number, since it uses less digits than its factorization.

218215472330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464288293.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 218215472330 in words is "two hundred eighteen billion, two hundred fifteen million, four hundred seventy-two thousand, three hundred thirty".