6563960693656 has 16 divisors (see below), whose sum is σ = 12307487639040. Its totient is φ = 3281963989920.

The previous prime is 6563960693639. The next prime is 6563960693663.

It is a happy number.

6563960693656 is nontrivially palindromic in base 10.

It is a congruent number.

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, 246040 + ... + 3631591.

It is an arithmetic number, because the mean of its divisors is an integer number (769217977440).

Almost surely, 2^{6563960693656} is an apocalyptic number.

It is an amenable number.

6563960693656 is a deficient number, since it is larger than the sum of its proper divisors (5743526945384).

6563960693656 is a wasteful number, since it uses less digits than its factorization.

6563960693656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089234 (or 4089230 counting only the distinct ones).

The product of its (nonzero) digits is 850305600, while the sum is 70.

The spelling of 6563960693656 in words is "six trillion, five hundred sixty-three billion, nine hundred sixty million, six hundred ninety-three thousand, six hundred fifty-six".