16318765223 has 2 divisors, whose sum is σ = 16318765224. Its totient is φ = 16318765222.

The previous prime is 16318765193. The next prime is 16318765241. The reversal of 16318765223 is 32256781361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16318765223 - 2¹⁸ = 16318503079 is a prime.

It is a super-3 number, since 3×16318765223³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16318765523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8159382611 + 8159382612.

It is an arithmetic number, because the mean of its divisors is an integer number (8159382612).

Almost surely, 2^16318765223 is an apocalyptic number.

16318765223 is a deficient number, since it is larger than the sum of its proper divisors (1).

16318765223 is an equidigital number, since it uses as much as digits as its factorization.

16318765223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The spelling of 16318765223 in words is "sixteen billion, three hundred eighteen million, seven hundred sixty-five thousand, two hundred twenty-three".