266680587167 has 2 divisors, whose sum is σ = 266680587168. Its totient is φ = 266680587166.

The previous prime is 266680587139. The next prime is 266680587181. The reversal of 266680587167 is 761785086662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266680587167 - 2²⁸ = 266412151711 is a prime.

It is a super-2 number, since 2×266680587167² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266680587127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133340293583 + 133340293584.

It is an arithmetic number, because the mean of its divisors is an integer number (133340293584).

Almost surely, 2^266680587167 is an apocalyptic number.

266680587167 is a deficient number, since it is larger than the sum of its proper divisors (1).

266680587167 is an equidigital number, since it uses as much as digits as its factorization.

266680587167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40642560, while the sum is 62.

The spelling of 266680587167 in words is "two hundred sixty-six billion, six hundred eighty million, five hundred eighty-seven thousand, one hundred sixty-seven".