216688191368035 has 8 divisors (see below), whose sum is σ = 260025919791696. Its totient is φ = 173350492994400.

The previous prime is 216688191368027. The next prime is 216688191368053. The reversal of 216688191368035 is 530863191886612.

216688191368035 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 216688191368035 - 2³ = 216688191368027 is a prime.

It is a super-2 number, since 2×216688191368035² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13899552 + ... + 25031458.

It is an arithmetic number, because the mean of its divisors is an integer number (32503239973962).

Almost surely, 2^{216688191368035} is an apocalyptic number.

216688191368035 is a deficient number, since it is larger than the sum of its proper divisors (43337728423661).

216688191368035 is a wasteful number, since it uses less digits than its factorization.

216688191368035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15025013.

The product of its (nonzero) digits is 89579520, while the sum is 67.

The spelling of 216688191368035 in words is "two hundred sixteen trillion, six hundred eighty-eight billion, one hundred ninety-one million, three hundred sixty-eight thousand, thirty-five".