16559256323 has 2 divisors, whose sum is σ = 16559256324. Its totient is φ = 16559256322.

The previous prime is 16559256289. The next prime is 16559256349. The reversal of 16559256323 is 32365295561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16559256323 - 2¹⁶ = 16559190787 is a prime.

It is not a weakly prime, because it can be changed into another prime (16559256223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8279628161 + 8279628162.

It is an arithmetic number, because the mean of its divisors is an integer number (8279628162).

Almost surely, 2^16559256323 is an apocalyptic number.

16559256323 is a deficient number, since it is larger than the sum of its proper divisors (1).

16559256323 is an equidigital number, since it uses as much as digits as its factorization.

16559256323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458000, while the sum is 47.

The spelling of 16559256323 in words is "sixteen billion, five hundred fifty-nine million, two hundred fifty-six thousand, three hundred twenty-three".