16403173223 has 2 divisors, whose sum is σ = 16403173224. Its totient is φ = 16403173222.

The previous prime is 16403173217. The next prime is 16403173247. The reversal of 16403173223 is 32237130461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16403173223 - 2⁶ = 16403173159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16403173223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16403173273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8201586611 + 8201586612.

It is an arithmetic number, because the mean of its divisors is an integer number (8201586612).

Almost surely, 2^16403173223 is an apocalyptic number.

16403173223 is a deficient number, since it is larger than the sum of its proper divisors (1).

16403173223 is an equidigital number, since it uses as much as digits as its factorization.

16403173223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The spelling of 16403173223 in words is "sixteen billion, four hundred three million, one hundred seventy-three thousand, two hundred twenty-three".