65608692889 has 2 divisors, whose sum is σ = 65608692890. Its totient is φ = 65608692888.

The previous prime is 65608692883. The next prime is 65608692901. The reversal of 65608692889 is 98829680656.

65608692889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43987931289 + 21620761600 = 209733^2 + 147040^2 .

It is a cyclic number.

It is not a de Polignac number, because 65608692889 - 2¹⁹ = 65608168601 is a prime.

It is not a weakly prime, because it can be changed into another prime (65608692883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32804346444 + 32804346445.

It is an arithmetic number, because the mean of its divisors is an integer number (32804346445).

Almost surely, 2^65608692889 is an apocalyptic number.

It is an amenable number.

65608692889 is a deficient number, since it is larger than the sum of its proper divisors (1).

65608692889 is an equidigital number, since it uses as much as digits as its factorization.

65608692889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89579520, while the sum is 67.

The spelling of 65608692889 in words is "sixty-five billion, six hundred eight million, six hundred ninety-two thousand, eight hundred eighty-nine".