216688191368034 has 16 divisors (see below), whose sum is σ = 433377742021920. Its totient is φ = 72229170575040.

The previous prime is 216688191368027. The next prime is 216688191368053. The reversal of 216688191368034 is 430863191886612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54558672 + ... + 58395419.

It is an arithmetic number, because the mean of its divisors is an integer number (27086108876370).

Almost surely, 2^{216688191368034} is an apocalyptic number.

216688191368034 is an abundant number, since it is smaller than the sum of its proper divisors (216689550653886).

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

216688191368034 is a wasteful number, since it uses less digits than its factorization.

216688191368034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113273825.

The product of its (nonzero) digits is 71663616, while the sum is 66.

The spelling of 216688191368034 in words is "two hundred sixteen trillion, six hundred eighty-eight billion, one hundred ninety-one million, three hundred sixty-eight thousand, thirty-four".