665133855179 has 2 divisors, whose sum is σ = 665133855180. Its totient is φ = 665133855178.

The previous prime is 665133855161. The next prime is 665133855301. The reversal of 665133855179 is 971558331566.

665133855179 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 665133855179 - 2¹⁶ = 665133789643 is a prime.

It is not a weakly prime, because it can be changed into another prime (665133855979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332566927589 + 332566927590.

It is an arithmetic number, because the mean of its divisors is an integer number (332566927590).

Almost surely, 2^665133855179 is an apocalyptic number.

665133855179 is a deficient number, since it is larger than the sum of its proper divisors (1).

665133855179 is an equidigital number, since it uses as much as digits as its factorization.

665133855179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412000, while the sum is 59.

The spelling of 665133855179 in words is "six hundred sixty-five billion, one hundred thirty-three million, eight hundred fifty-five thousand, one hundred seventy-nine".