766666689960167 has 2 divisors, whose sum is σ = 766666689960168. Its totient is φ = 766666689960166.

The previous prime is 766666689959999. The next prime is 766666689960179. The reversal of 766666689960167 is 761069986666667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 766666689960167 - 2²⁸ = 766666421524711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766666689960667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383333344980083 + 383333344980084.

It is an arithmetic number, because the mean of its divisors is an integer number (383333344980084).

Almost surely, 2^{766666689960167} is an apocalyptic number.

766666689960167 is a deficient number, since it is larger than the sum of its proper divisors (1).

766666689960167 is an equidigital number, since it uses as much as digits as its factorization.

766666689960167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53331167232, while the sum is 89.

The spelling of 766666689960167 in words is "seven hundred sixty-six trillion, six hundred sixty-six billion, six hundred eighty-nine million, nine hundred sixty thousand, one hundred sixty-seven".