266696382879 has 6 divisors (see below), whose sum is σ = 385228108616. Its totient is φ = 177797588580.

The previous prime is 266696382871. The next prime is 266696382917. The reversal of 266696382879 is 978283696662.

It is not a de Polignac number, because 266696382879 - 2³ = 266696382871 is a prime.

It is a super-2 number, since 2×266696382879² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266696382871) 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 in 5 ways as a sum of consecutive naturals, for example, 14816465707 + ... + 14816465724.

Almost surely, 2^266696382879 is an apocalyptic number.

266696382879 is a deficient number, since it is larger than the sum of its proper divisors (118531725737).

266696382879 is a wasteful number, since it uses less digits than its factorization.

266696382879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29632931437 (or 29632931434 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 72.

The spelling of 266696382879 in words is "two hundred sixty-six billion, six hundred ninety-six million, three hundred eighty-two thousand, eight hundred seventy-nine".