66700033372367 has 2 divisors, whose sum is σ = 66700033372368. Its totient is φ = 66700033372366.

The previous prime is 66700033372361. The next prime is 66700033372369. The reversal of 66700033372367 is 76327333000766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66700033372367 - 2²⁰ = 66700032323791 is a prime.

Together with 66700033372369, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66700033372361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33350016686183 + 33350016686184.

It is an arithmetic number, because the mean of its divisors is an integer number (33350016686184).

Almost surely, 2^{66700033372367} is an apocalyptic number.

66700033372367 is a deficient number, since it is larger than the sum of its proper divisors (1).

66700033372367 is an equidigital number, since it uses as much as digits as its factorization.

66700033372367 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12002256, while the sum is 53.

The spelling of 66700033372367 in words is "sixty-six trillion, seven hundred billion, thirty-three million, three hundred seventy-two thousand, three hundred sixty-seven".