169608016009 has 2 divisors, whose sum is σ = 169608016010. Its totient is φ = 169608016008.

The previous prime is 169608015971. The next prime is 169608016027. The reversal of 169608016009 is 900610806961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154225071225 + 15382944784 = 392715^2 + 124028^2 .

It is a cyclic number.

It is not a de Polignac number, because 169608016009 - 2⁹ = 169608015497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 169608016009.

It is not a weakly prime, because it can be changed into another prime (169608013009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84804008004 + 84804008005.

It is an arithmetic number, because the mean of its divisors is an integer number (84804008005).

Almost surely, 2^169608016009 is an apocalyptic number.

It is an amenable number.

169608016009 is a deficient number, since it is larger than the sum of its proper divisors (1).

169608016009 is an equidigital number, since it uses as much as digits as its factorization.

169608016009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 169608016009 in words is "one hundred sixty-nine billion, six hundred eight million, sixteen thousand, nine".