63664246636 has 12 divisors (see below), whose sum is σ = 111420481480. Its totient is φ = 31829823360.

The previous prime is 63664246619. The next prime is 63664246651.

63664246636 is nontrivially palindromic in base 10.

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, 511941 + ... + 624028.

Almost surely, 2^63664246636 is an apocalyptic number.

It is an amenable number.

63664246636 is a deficient number, since it is larger than the sum of its proper divisors (47756234844).

63664246636 is a wasteful number, since it uses less digits than its factorization.

63664246636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149984 (or 1149982 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 52.

The spelling of 63664246636 in words is "sixty-three billion, six hundred sixty-four million, two hundred forty-six thousand, six hundred thirty-six".