6563160265 has 8 divisors (see below), whose sum is σ = 7983680328. Its totient is φ = 5178602880.

The previous prime is 6563160217. The next prime is 6563160269. The reversal of 6563160265 is 5620613656.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 259435449 + 6303724816 = 16107^2 + 79396^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6563160265 - 2⁷ = 6563160137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6563160269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8990266 + ... + 8990995.

It is an arithmetic number, because the mean of its divisors is an integer number (997960041).

Almost surely, 2^6563160265 is an apocalyptic number.

It is an amenable number.

6563160265 is a deficient number, since it is larger than the sum of its proper divisors (1420520063).

6563160265 is a wasteful number, since it uses less digits than its factorization.

6563160265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17981339.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 6563160265 is about 81013.3338716535. Note that the first 3 decimals coincide. The cubic root of 6563160265 is about 1872.2808837825.

The spelling of 6563160265 in words is "six billion, five hundred sixty-three million, one hundred sixty thousand, two hundred sixty-five".