6565500006651 has 64 divisors (see below), whose sum is σ = 10258467609600. Its totient is φ = 4138589894400.

The previous prime is 6565500006647. The next prime is 6565500006683. The reversal of 6565500006651 is 1566000055656.

It is not a de Polignac number, because 6565500006651 - 2² = 6565500006647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6565500006597 and 6565500006606.

It is not an unprimeable number, because it can be changed into a prime (6565500026651) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1347872746 + ... + 1347877616.

It is an arithmetic number, because the mean of its divisors is an integer number (160288556400).

Almost surely, 2^{6565500006651} is an apocalyptic number.

6565500006651 is a deficient number, since it is larger than the sum of its proper divisors (3692967602949).

6565500006651 is a wasteful number, since it uses less digits than its factorization.

6565500006651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9457 (or 9451 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 6565500006651 in words is "six trillion, five hundred sixty-five billion, five hundred million, six thousand, six hundred fifty-one".