216563456644124 has 12 divisors (see below), whose sum is σ = 395463703437264. Its totient is φ = 103573827090624.

The previous prime is 216563456644111. The next prime is 216563456644211. The reversal of 216563456644124 is 421446654365612.

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, 1176975307757 + ... + 1176975307940.

It is an arithmetic number, because the mean of its divisors is an integer number (32955308619772).

Almost surely, 2^{216563456644124} is an apocalyptic number.

It is an amenable number.

216563456644124 is a deficient number, since it is larger than the sum of its proper divisors (178900246793140).

216563456644124 is a wasteful number, since it uses less digits than its factorization.

216563456644124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353950615724 (or 2353950615722 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 59.

The spelling of 216563456644124 in words is "two hundred sixteen trillion, five hundred sixty-three billion, four hundred fifty-six million, six hundred forty-four thousand, one hundred twenty-four".