66734141046799 has 2 divisors, whose sum is σ = 66734141046800. Its totient is φ = 66734141046798.

The previous prime is 66734141046719. The next prime is 66734141046809. The reversal of 66734141046799 is 99764014143766.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66734141046799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66734141046719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33367070523399 + 33367070523400.

It is an arithmetic number, because the mean of its divisors is an integer number (33367070523400).

Almost surely, 2^{66734141046799} is an apocalyptic number.

66734141046799 is a deficient number, since it is larger than the sum of its proper divisors (1).

66734141046799 is an equidigital number, since it uses as much as digits as its factorization.

66734141046799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164602368, while the sum is 67.

The spelling of 66734141046799 in words is "sixty-six trillion, seven hundred thirty-four billion, one hundred forty-one million, forty-six thousand, seven hundred ninety-nine".