6563648044 has 12 divisors (see below), whose sum is σ = 11544106000. Its totient is φ = 3265332048.

The previous prime is 6563648029. The next prime is 6563648081. The reversal of 6563648044 is 4408463656.

It is a junction number, because it is equal to n+sod(n) for n = 6563647985 and 6563648003.

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, 4122099 + ... + 4123690.

Almost surely, 2^6563648044 is an apocalyptic number.

It is an amenable number.

6563648044 is a deficient number, since it is larger than the sum of its proper divisors (4980457956).

6563648044 is a wasteful number, since it uses less digits than its factorization.

6563648044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8245992 (or 8245990 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 46.

The square root of 6563648044 is about 81016.3443016284. The cubic root of 6563648044 is about 1872.3272657406.

The spelling of 6563648044 in words is "six billion, five hundred sixty-three million, six hundred forty-eight thousand, forty-four".