16385273130209 has 2 divisors, whose sum is σ = 16385273130210. Its totient is φ = 16385273130208.

The previous prime is 16385273130151. The next prime is 16385273130277. The reversal of 16385273130209 is 90203137258361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8885496531025 + 7499776599184 = 2980855^2 + 2738572^2 .

It is a cyclic number.

It is not a de Polignac number, because 16385273130209 - 2¹² = 16385273126113 is a prime.

It is not a weakly prime, because it can be changed into another prime (16385273130509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8192636565104 + 8192636565105.

It is an arithmetic number, because the mean of its divisors is an integer number (8192636565105).

Almost surely, 2^{16385273130209} is an apocalyptic number.

It is an amenable number.

16385273130209 is a deficient number, since it is larger than the sum of its proper divisors (1).

16385273130209 is an equidigital number, since it uses as much as digits as its factorization.

16385273130209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 16385273130209 in words is "sixteen trillion, three hundred eighty-five billion, two hundred seventy-three million, one hundred thirty thousand, two hundred nine".