666007767110773 has 2 divisors, whose sum is σ = 666007767110774. Its totient is φ = 666007767110772.

The previous prime is 666007767110767. The next prime is 666007767110783. The reversal of 666007767110773 is 377011767700666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 665312741433649 + 695025677124 = 25793657^2 + 833682^2 .

It is a cyclic number.

It is not a de Polignac number, because 666007767110773 - 2¹³ = 666007767102581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666007767110783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333003883555386 + 333003883555387.

It is an arithmetic number, because the mean of its divisors is an integer number (333003883555387).

Almost surely, 2^{666007767110773} is an apocalyptic number.

It is an amenable number.

666007767110773 is a deficient number, since it is larger than the sum of its proper divisors (1).

666007767110773 is an equidigital number, since it uses as much as digits as its factorization.

666007767110773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65345616, while the sum is 64.

The spelling of 666007767110773 in words is "six hundred sixty-six trillion, seven billion, seven hundred sixty-seven million, one hundred ten thousand, seven hundred seventy-three".