66256265266 has 8 divisors (see below), whose sum is σ = 99386853660. Its totient is φ = 33127314048.

The previous prime is 66256265221. The next prime is 66256265267.

66256265266 is nontrivially palindromic in base 10.

66256265266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52248359241 + 14007906025 = 228579^2 + 118355^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66256265267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302551 + ... + 473338.

Almost surely, 2^66256265266 is an apocalyptic number.

66256265266 is a deficient number, since it is larger than the sum of its proper divisors (33130588394).

66256265266 is a wasteful number, since it uses less digits than its factorization.

66256265266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818588.

The product of its digits is 9331200, while the sum is 52.

The spelling of 66256265266 in words is "sixty-six billion, two hundred fifty-six million, two hundred sixty-five thousand, two hundred sixty-six".