6550566065 has 16 divisors (see below), whose sum is σ = 8284576320. Its totient is φ = 4958533440.

The previous prime is 6550566059. The next prime is 6550566079. The reversal of 6550566065 is 5606650556.

It is not a de Polignac number, because 6550566065 - 2²⁸ = 6282130609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36002 + ... + 119988.

It is an arithmetic number, because the mean of its divisors is an integer number (517786020).

Almost surely, 2^6550566065 is an apocalyptic number.

It is an amenable number.

6550566065 is a deficient number, since it is larger than the sum of its proper divisors (1734010255).

6550566065 is a wasteful number, since it uses less digits than its factorization.

6550566065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84832.

The product of its (nonzero) digits is 810000, while the sum is 44.

The square root of 6550566065 is about 80935.5673668876. The cubic root of 6550566065 is about 1871.0825292443.

The spelling of 6550566065 in words is "six billion, five hundred fifty million, five hundred sixty-six thousand, sixty-five".