16256666323 has 4 divisors (see below), whose sum is σ = 17112280360. Its totient is φ = 15401052288.

The previous prime is 16256666273. The next prime is 16256666333. The reversal of 16256666323 is 32366665261.

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 16256666323 - 2²⁹ = 15719795411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16256666333) 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, 427806990 + ... + 427807027.

It is an arithmetic number, because the mean of its divisors is an integer number (4278070090).

Almost surely, 2^16256666323 is an apocalyptic number.

16256666323 is a deficient number, since it is larger than the sum of its proper divisors (855614037).

16256666323 is an equidigital number, since it uses as much as digits as its factorization.

16256666323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855614036.

The product of its digits is 1399680, while the sum is 46.

The spelling of 16256666323 in words is "sixteen billion, two hundred fifty-six million, six hundred sixty-six thousand, three hundred twenty-three".