63642036616 has 32 divisors (see below), whose sum is σ = 120034224000. Its totient is φ = 31633026496.

The previous prime is 63642036569. The next prime is 63642036631. The reversal of 63642036616 is 61663024636.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6463425 + ... + 6473263.

It is an arithmetic number, because the mean of its divisors is an integer number (3751069500).

Almost surely, 2^63642036616 is an apocalyptic number.

It is an amenable number.

63642036616 is a deficient number, since it is larger than the sum of its proper divisors (56392187384).

63642036616 is a wasteful number, since it uses less digits than its factorization.

63642036616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14541 (or 14537 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 43.

The spelling of 63642036616 in words is "sixty-three billion, six hundred forty-two million, thirty-six thousand, six hundred sixteen".