266752712656 has 20 divisors (see below), whose sum is σ = 520256123104. Its totient is φ = 132493068000.

The previous prime is 266752712641. The next prime is 266752712669. The reversal of 266752712656 is 656217257662.

It is a junction number, because it is equal to n+sod(n) for n = 266752712597 and 266752712606.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 55203030 + ... + 55207861.

Almost surely, 2^266752712656 is an apocalyptic number.

It is an amenable number.

266752712656 is a deficient number, since it is larger than the sum of its proper divisors (253503410448).

266752712656 is a wasteful number, since it uses less digits than its factorization.

266752712656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110411050 (or 110411044 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 55.

The spelling of 266752712656 in words is "two hundred sixty-six billion, seven hundred fifty-two million, seven hundred twelve thousand, six hundred fifty-six".