66753164939 has 2 divisors, whose sum is σ = 66753164940. Its totient is φ = 66753164938.

The previous prime is 66753164879. The next prime is 66753164969. The reversal of 66753164939 is 93946135766.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66753164939 - 2¹⁶ = 66753099403 is a prime.

It is not a weakly prime, because it can be changed into another prime (66753164969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33376582469 + 33376582470.

It is an arithmetic number, because the mean of its divisors is an integer number (33376582470).

Almost surely, 2^66753164939 is an apocalyptic number.

66753164939 is a deficient number, since it is larger than the sum of its proper divisors (1).

66753164939 is an equidigital number, since it uses as much as digits as its factorization.

66753164939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22044960, while the sum is 59.

The spelling of 66753164939 in words is "sixty-six billion, seven hundred fifty-three million, one hundred sixty-four thousand, nine hundred thirty-nine".