63664846636 has 12 divisors (see below), whose sum is σ = 111732720400. Its totient is φ = 31741212240.

The previous prime is 63664846633. The next prime is 63664846639.

63664846636 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (63664846633) and next prime (63664846639).

It is not an unprimeable number, because it can be changed into a prime (63664846633) 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, 22801200 + ... + 22803991.

Almost surely, 2^63664846636 is an apocalyptic number.

It is an amenable number.

63664846636 is a deficient number, since it is larger than the sum of its proper divisors (48067873764).

63664846636 is a wasteful number, since it uses less digits than its factorization.

63664846636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45605544 (or 45605542 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 58.

The spelling of 63664846636 in words is "sixty-three billion, six hundred sixty-four million, eight hundred forty-six thousand, six hundred thirty-six".