6665432633 has 2 divisors, whose sum is σ = 6665432634. Its totient is φ = 6665432632.

The previous prime is 6665432593. The next prime is 6665432639. The reversal of 6665432633 is 3362345666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6273907264 + 391525369 = 79208^2 + 19787^2 .

It is a cyclic number.

It is not a de Polignac number, because 6665432633 - 2⁶ = 6665432569 is a prime.

It is a super-2 number, since 2×6665432633² = 88855984370122625378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6665432639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332716316 + 3332716317.

It is an arithmetic number, because the mean of its divisors is an integer number (3332716317).

Almost surely, 2^6665432633 is an apocalyptic number.

It is an amenable number.

6665432633 is a deficient number, since it is larger than the sum of its proper divisors (1).

6665432633 is an equidigital number, since it uses as much as digits as its factorization.

6665432633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 44.

The square root of 6665432633 is about 81642.1008610141. The cubic root of 6665432633 is about 1881.9559235820.

The spelling of 6665432633 in words is "six billion, six hundred sixty-five million, four hundred thirty-two thousand, six hundred thirty-three".