216919875201 has 4 divisors (see below), whose sum is σ = 289226500272. Its totient is φ = 144613250132.

The previous prime is 216919875191. The next prime is 216919875209. The reversal of 216919875201 is 102578919612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216919875201 - 2¹⁴ = 216919858817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216919875209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36153312531 + ... + 36153312536.

It is an arithmetic number, because the mean of its divisors is an integer number (72306625068).

Almost surely, 2^216919875201 is an apocalyptic number.

It is an amenable number.

216919875201 is a deficient number, since it is larger than the sum of its proper divisors (72306625071).

216919875201 is an equidigital number, since it uses as much as digits as its factorization.

216919875201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72306625070.

The product of its (nonzero) digits is 544320, while the sum is 51.

The spelling of 216919875201 in words is "two hundred sixteen billion, nine hundred nineteen million, eight hundred seventy-five thousand, two hundred one".