6565012243 has 2 divisors, whose sum is σ = 6565012244. Its totient is φ = 6565012242.

The previous prime is 6565012193. The next prime is 6565012261. The reversal of 6565012243 is 3422105656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6565012243 - 2¹⁷ = 6564881171 is a prime.

It is a super-3 number, since 3×6565012243³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6565012199 and 6565012208.

It is not a weakly prime, because it can be changed into another prime (6565012543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282506121 + 3282506122.

It is an arithmetic number, because the mean of its divisors is an integer number (3282506122).

Almost surely, 2^6565012243 is an apocalyptic number.

6565012243 is a deficient number, since it is larger than the sum of its proper divisors (1).

6565012243 is an equidigital number, since it uses as much as digits as its factorization.

6565012243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 6565012243 is about 81024.7631468306. The cubic root of 6565012243 is about 1872.4569725758.

Adding to 6565012243 its reverse (3422105656), we get a palindrome (9987117899).

The spelling of 6565012243 in words is "six billion, five hundred sixty-five million, twelve thousand, two hundred forty-three".