216255989214 has 64 divisors (see below), whose sum is σ = 509072947200. Its totient is φ = 67813640064.

The previous prime is 216255989123. The next prime is 216255989227. The reversal of 216255989214 is 412989552612.

216255989214 is a `hidden beast` number, since 2 + 1 + 6 + 2 + 559 + 89 + 2 + 1 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1972657 + ... + 2079395.

It is an arithmetic number, because the mean of its divisors is an integer number (7954264800).

Almost surely, 2^216255989214 is an apocalyptic number.

216255989214 is an abundant number, since it is smaller than the sum of its proper divisors (292816957986).

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

216255989214 is a wasteful number, since it uses less digits than its factorization.

216255989214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108974 (or 108968 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 216255989214 in words is "two hundred sixteen billion, two hundred fifty-five million, nine hundred eighty-nine thousand, two hundred fourteen".