16866168323 has 4 divisors (see below), whose sum is σ = 17184397968. Its totient is φ = 16547938680.

The previous prime is 16866168307. The next prime is 16866168337. The reversal of 16866168323 is 32386166861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16866168323 - 2⁴ = 16866168307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16866168353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159114743 + ... + 159114848.

It is an arithmetic number, because the mean of its divisors is an integer number (4296099492).

Almost surely, 2^16866168323 is an apocalyptic number.

16866168323 is a deficient number, since it is larger than the sum of its proper divisors (318229645).

16866168323 is an equidigital number, since it uses as much as digits as its factorization.

16866168323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318229644.

The product of its digits is 1492992, while the sum is 50.

The spelling of 16866168323 in words is "sixteen billion, eight hundred sixty-six million, one hundred sixty-eight thousand, three hundred twenty-three".