16868533667 has 8 divisors (see below), whose sum is σ = 17092807056. Its totient is φ = 16645576192.

The previous prime is 16868533631. The next prime is 16868533711. The reversal of 16868533667 is 76633586861.

It is a happy number.

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

It is not a de Polignac number, because 16868533667 - 2⁸ = 16868533411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16868530667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303158 + ... + 354459.

It is an arithmetic number, because the mean of its divisors is an integer number (2136600882).

Almost surely, 2^16868533667 is an apocalyptic number.

16868533667 is a deficient number, since it is larger than the sum of its proper divisors (224273389).

16868533667 is a wasteful number, since it uses less digits than its factorization.

16868533667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657957.

The product of its digits is 26127360, while the sum is 59.

The spelling of 16868533667 in words is "sixteen billion, eight hundred sixty-eight million, five hundred thirty-three thousand, six hundred sixty-seven".