266339976688 has 40 divisors (see below), whose sum is σ = 517197700800. Its totient is φ = 132869950464.

The previous prime is 266339976649. The next prime is 266339976703. The reversal of 266339976688 is 886679933662.

It is a self number, because there is not a number n which added to its sum of digits gives 266339976688.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13361193 + ... + 13381111.

It is an arithmetic number, because the mean of its divisors is an integer number (12929942520).

Almost surely, 2^266339976688 is an apocalyptic number.

It is an amenable number.

266339976688 is a deficient number, since it is larger than the sum of its proper divisors (250857724112).

266339976688 is a wasteful number, since it uses less digits than its factorization.

266339976688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21769 (or 21763 counting only the distinct ones).

The product of its digits is 846526464, while the sum is 73.

The spelling of 266339976688 in words is "two hundred sixty-six billion, three hundred thirty-nine million, nine hundred seventy-six thousand, six hundred eighty-eight".