216968195 has 12 divisors (see below), whose sum is σ = 276579984. Its totient is φ = 163363200.

The previous prime is 216968179. The next prime is 216968209. The reversal of 216968195 is 591869612.

It is a happy number.

216968195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216968195 - 2⁴ = 216968179 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73631 + ... + 76520.

It is an arithmetic number, because the mean of its divisors is an integer number (23048332).

Almost surely, 2^216968195 is an apocalyptic number.

216968195 is a deficient number, since it is larger than the sum of its proper divisors (59611789).

216968195 is a wasteful number, since it uses less digits than its factorization.

216968195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150190 (or 150173 counting only the distinct ones).

The product of its digits is 233280, while the sum is 47.

The square root of 216968195 is about 14729.8402910554. The cubic root of 216968195 is about 600.8951407262.

The spelling of 216968195 in words is "two hundred sixteen million, nine hundred sixty-eight thousand, one hundred ninety-five".