63680707516 has 12 divisors (see below), whose sum is σ = 111626668720. Its totient is φ = 31787373600.

The previous prime is 63680707471. The next prime is 63680707529. The reversal of 63680707516 is 61570708636.

It is a self number, because there is not a number n which added to its sum of digits gives 63680707516.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13242336 + ... + 13247143.

Almost surely, 2^63680707516 is an apocalyptic number.

It is an amenable number.

63680707516 is a deficient number, since it is larger than the sum of its proper divisors (47945961204).

63680707516 is a wasteful number, since it uses less digits than its factorization.

63680707516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26490084 (or 26490082 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 63680707516 in words is "sixty-three billion, six hundred eighty million, seven hundred seven thousand, five hundred sixteen".