168096809689 has 4 divisors (see below), whose sum is σ = 175405366656. Its totient is φ = 160788252724.

The previous prime is 168096809681. The next prime is 168096809717. The reversal of 168096809689 is 986908690861.

168096809689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168096809689 - 2³ = 168096809681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168096809681) 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 in 3 ways as a sum of consecutive naturals, for example, 3654278449 + ... + 3654278494.

It is an arithmetic number, because the mean of its divisors is an integer number (43851341664).

Almost surely, 2^168096809689 is an apocalyptic number.

It is an amenable number.

168096809689 is a deficient number, since it is larger than the sum of its proper divisors (7308556967).

168096809689 is an equidigital number, since it uses as much as digits as its factorization.

168096809689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7308556966.

The product of its (nonzero) digits is 80621568, while the sum is 70.

The spelling of 168096809689 in words is "one hundred sixty-eight billion, ninety-six million, eight hundred nine thousand, six hundred eighty-nine".