66753164879 has 2 divisors, whose sum is σ = 66753164880. Its totient is φ = 66753164878.

The previous prime is 66753164861. The next prime is 66753164939. The reversal of 66753164879 is 97846135766.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66753164879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66753164839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33376582439 + 33376582440.

It is an arithmetic number, because the mean of its divisors is an integer number (33376582440).

Almost surely, 2^66753164879 is an apocalyptic number.

66753164879 is a deficient number, since it is larger than the sum of its proper divisors (1).

66753164879 is an equidigital number, since it uses as much as digits as its factorization.

66753164879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 62.

The spelling of 66753164879 in words is "sixty-six billion, seven hundred fifty-three million, one hundred sixty-four thousand, eight hundred seventy-nine".