169660956109 has 2 divisors, whose sum is σ = 169660956110. Its totient is φ = 169660956108.

The previous prime is 169660956013. The next prime is 169660956161. The reversal of 169660956109 is 901659066961.

169660956109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150604534084 + 19056422025 = 388078^2 + 138045^2 .

It is a cyclic number.

It is not a de Polignac number, because 169660956109 - 2²⁹ = 169124085197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169660356109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84830478054 + 84830478055.

It is an arithmetic number, because the mean of its divisors is an integer number (84830478055).

Almost surely, 2^169660956109 is an apocalyptic number.

It is an amenable number.

169660956109 is a deficient number, since it is larger than the sum of its proper divisors (1).

169660956109 is an equidigital number, since it uses as much as digits as its factorization.

169660956109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4723920, while the sum is 58.

The spelling of 169660956109 in words is "one hundred sixty-nine billion, six hundred sixty million, nine hundred fifty-six thousand, one hundred nine".