216688191368033 has 8 divisors (see below), whose sum is σ = 270156706121280. Its totient is φ = 168847941325680.

The previous prime is 216688191368027. The next prime is 216688191368053. The reversal of 216688191368033 is 330863191886612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216688191368033 - 2¹⁰ = 216688191367009 is a prime.

It is a super-2 number, since 2×216688191368033² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (216688191368053) by changing a digit.

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, 1407066177638 + ... + 1407066177791.

It is an arithmetic number, because the mean of its divisors is an integer number (33769588265160).

Almost surely, 2^{216688191368033} is an apocalyptic number.

It is an amenable number.

216688191368033 is a deficient number, since it is larger than the sum of its proper divisors (53468514753247).

216688191368033 is a wasteful number, since it uses less digits than its factorization.

216688191368033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814132355447.

The product of its (nonzero) digits is 53747712, while the sum is 65.

The spelling of 216688191368033 in words is "two hundred sixteen trillion, six hundred eighty-eight billion, one hundred ninety-one million, three hundred sixty-eight thousand, thirty-three".