65003006209 has 2 divisors, whose sum is σ = 65003006210. Its totient is φ = 65003006208.

The previous prime is 65003006197. The next prime is 65003006227. The reversal of 65003006209 is 90260030056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47829690000 + 17173316209 = 218700^2 + 131047^2 .

It is a cyclic number.

It is not a de Polignac number, because 65003006209 - 2¹¹ = 65003004161 is a prime.

It is not a weakly prime, because it can be changed into another prime (65003006009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32501503104 + 32501503105.

It is an arithmetic number, because the mean of its divisors is an integer number (32501503105).

Almost surely, 2^65003006209 is an apocalyptic number.

It is an amenable number.

65003006209 is a deficient number, since it is larger than the sum of its proper divisors (1).

65003006209 is an equidigital number, since it uses as much as digits as its factorization.

65003006209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 65003006209 in words is "sixty-five billion, three million, six thousand, two hundred nine".