667367104325777 has 2 divisors, whose sum is σ = 667367104325778. Its totient is φ = 667367104325776.

The previous prime is 667367104325659. The next prime is 667367104325783. The reversal of 667367104325777 is 777523401763766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 577460316403216 + 89906787922561 = 24030404^2 + 9481919^2 .

It is a cyclic number.

It is not a de Polignac number, because 667367104325777 - 2²⁰ = 667367103277201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667367104325777.

It is not a weakly prime, because it can be changed into another prime (667367104925777) 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, 333683552162888 + 333683552162889.

It is an arithmetic number, because the mean of its divisors is an integer number (333683552162889).

Almost surely, 2^{667367104325777} is an apocalyptic number.

It is an amenable number.

667367104325777 is a deficient number, since it is larger than the sum of its proper divisors (1).

667367104325777 is an equidigital number, since it uses as much as digits as its factorization.

667367104325777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306912320, while the sum is 71.

The spelling of 667367104325777 in words is "six hundred sixty-seven trillion, three hundred sixty-seven billion, one hundred four million, three hundred twenty-five thousand, seven hundred seventy-seven".