6665433233 has 2 divisors, whose sum is σ = 6665433234. Its totient is φ = 6665433232.

The previous prime is 6665433221. The next prime is 6665433259. The reversal of 6665433233 is 3323345666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6637849729 + 27583504 = 81473^2 + 5252^2 .

It is a cyclic number.

It is not a de Polignac number, because 6665433233 - 2²⁴ = 6648656017 is a prime.

It is not a weakly prime, because it can be changed into another prime (6665433133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332716616 + 3332716617.

It is an arithmetic number, because the mean of its divisors is an integer number (3332716617).

Almost surely, 2^6665433233 is an apocalyptic number.

It is an amenable number.

6665433233 is a deficient number, since it is larger than the sum of its proper divisors (1).

6665433233 is an equidigital number, since it uses as much as digits as its factorization.

6665433233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 41.

The square root of 6665433233 is about 81642.1045355887. The cubic root of 6665433233 is about 1881.9559800511.

Adding to 6665433233 its reverse (3323345666), we get a palindrome (9988778899).

It can be divided in two parts, 6665433 and 233, that added together give a palindrome (6665666).

The spelling of 6665433233 in words is "six billion, six hundred sixty-five million, four hundred thirty-three thousand, two hundred thirty-three".