632663664266 has 4 divisors (see below), whose sum is σ = 948995496402. Its totient is φ = 316331832132.

The previous prime is 632663664247. The next prime is 632663664299. The reversal of 632663664266 is 662466366236.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 579219934225 + 53443730041 = 761065^2 + 231179^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158165916065 + ... + 158165916068.

Almost surely, 2^632663664266 is an apocalyptic number.

632663664266 is a deficient number, since it is larger than the sum of its proper divisors (316331832136).

632663664266 is a wasteful number, since it uses less digits than its factorization.

632663664266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316331832135.

The product of its digits is 40310784, while the sum is 56.

The spelling of 632663664266 in words is "six hundred thirty-two billion, six hundred sixty-three million, six hundred sixty-four thousand, two hundred sixty-six".