218464023224 has 16 divisors (see below), whose sum is σ = 409714556400. Its totient is φ = 109206808192.

The previous prime is 218464023163. The next prime is 218464023241. The reversal of 218464023224 is 422320464812.

It is a super-2 number, since 2×218464023224² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3113564 + ... + 3182955.

It is an arithmetic number, because the mean of its divisors is an integer number (25607159775).

Almost surely, 2^218464023224 is an apocalyptic number.

It is an amenable number.

218464023224 is a deficient number, since it is larger than the sum of its proper divisors (191250533176).

218464023224 is a wasteful number, since it uses less digits than its factorization.

218464023224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6300862 (or 6300858 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 38.

The spelling of 218464023224 in words is "two hundred eighteen billion, four hundred sixty-four million, twenty-three thousand, two hundred twenty-four".