218655430315 has 16 divisors (see below), whose sum is σ = 299881191168. Its totient is φ = 149929708896.

The previous prime is 218655430283. The next prime is 218655430319. The reversal of 218655430315 is 513034556812.

218655430315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 218655430315 - 2⁵ = 218655430283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218655430319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1025544 + ... + 1220266.

It is an arithmetic number, because the mean of its divisors is an integer number (18742574448).

Almost surely, 2^218655430315 is an apocalyptic number.

218655430315 is a deficient number, since it is larger than the sum of its proper divisors (81225760853).

218655430315 is a wasteful number, since it uses less digits than its factorization.

218655430315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226818.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 218655430315 in words is "two hundred eighteen billion, six hundred fifty-five million, four hundred thirty thousand, three hundred fifteen".