63667676636 has 12 divisors (see below), whose sum is σ = 112521587640. Its totient is φ = 31518651600.

The previous prime is 63667676591. The next prime is 63667676717.

It is a happy number.

63667676636 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78796226 + ... + 78797033.

It is an arithmetic number, because the mean of its divisors is an integer number (9376798970).

Almost surely, 2^63667676636 is an apocalyptic number.

It is an amenable number.

63667676636 is a deficient number, since it is larger than the sum of its proper divisors (48853911004).

63667676636 is a wasteful number, since it uses less digits than its factorization.

63667676636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157593364 (or 157593362 counting only the distinct ones).

The product of its digits is 123451776, while the sum is 62.

The spelling of 63667676636 in words is "sixty-three billion, six hundred sixty-seven million, six hundred seventy-six thousand, six hundred thirty-six".