216228342364 has 24 divisors (see below), whose sum is σ = 390343242128. Its totient is φ = 104754608640.

The previous prime is 216228342359. The next prime is 216228342367. The reversal of 216228342364 is 463243822612.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 216228342364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216228342367) 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, 6596949 + ... + 6629644.

Almost surely, 2^216228342364 is an apocalyptic number.

It is an amenable number.

216228342364 is a deficient number, since it is larger than the sum of its proper divisors (174114899764).

216228342364 is a wasteful number, since it uses less digits than its factorization.

216228342364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13226725 (or 13226723 counting only the distinct ones).

The product of its digits is 663552, while the sum is 43.

The spelling of 216228342364 in words is "two hundred sixteen billion, two hundred twenty-eight million, three hundred forty-two thousand, three hundred sixty-four".