6566123323 has 2 divisors, whose sum is σ = 6566123324. Its totient is φ = 6566123322.

The previous prime is 6566123273. The next prime is 6566123339. The reversal of 6566123323 is 3233216656.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6566123323 is a prime.

It is a super-2 number, since 2×6566123323² = 86227950985689124658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6566123383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3283061661 + 3283061662.

It is an arithmetic number, because the mean of its divisors is an integer number (3283061662).

Almost surely, 2^6566123323 is an apocalyptic number.

6566123323 is a deficient number, since it is larger than the sum of its proper divisors (1).

6566123323 is an equidigital number, since it uses as much as digits as its factorization.

6566123323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 37.

The square root of 6566123323 is about 81031.6192791431. The cubic root of 6566123323 is about 1872.5625998039.

Adding to 6566123323 its reverse (3233216656), we get a palindrome (9799339979).

The spelling of 6566123323 in words is "six billion, five hundred sixty-six million, one hundred twenty-three thousand, three hundred twenty-three".