65565352289 has 2 divisors, whose sum is σ = 65565352290. Its totient is φ = 65565352288.

The previous prime is 65565352241. The next prime is 65565352331. The reversal of 65565352289 is 98225356556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47506561600 + 18058790689 = 217960^2 + 134383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65565352289 is a prime.

It is not a weakly prime, because it can be changed into another prime (65565354289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32782676144 + 32782676145.

It is an arithmetic number, because the mean of its divisors is an integer number (32782676145).

Almost surely, 2^65565352289 is an apocalyptic number.

It is an amenable number.

65565352289 is a deficient number, since it is larger than the sum of its proper divisors (1).

65565352289 is an equidigital number, since it uses as much as digits as its factorization.

65565352289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440000, while the sum is 56.

The spelling of 65565352289 in words is "sixty-five billion, five hundred sixty-five million, three hundred fifty-two thousand, two hundred eighty-nine".