216919875199 has 16 divisors (see below), whose sum is σ = 224890269696. Its totient is φ = 209011046400.

The previous prime is 216919875191. The next prime is 216919875209. The reversal of 216919875199 is 991578919612.

It is a cyclic number.

It is not a de Polignac number, because 216919875199 - 2³ = 216919875191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216919875191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22996014 + ... + 23005444.

It is an arithmetic number, because the mean of its divisors is an integer number (14055641856).

Almost surely, 2^216919875199 is an apocalyptic number.

216919875199 is a deficient number, since it is larger than the sum of its proper divisors (7970394497).

216919875199 is a wasteful number, since it uses less digits than its factorization.

216919875199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12606.

The product of its digits is 22044960, while the sum is 67.

The spelling of 216919875199 in words is "two hundred sixteen billion, nine hundred nineteen million, eight hundred seventy-five thousand, one hundred ninety-nine".