160641659909 has 2 divisors, whose sum is σ = 160641659910. Its totient is φ = 160641659908.

The previous prime is 160641659897. The next prime is 160641659911. The reversal of 160641659909 is 909956146061.

160641659909 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., 110802436900 + 49839223009 = 332870^2 + 223247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160641659909 is a prime.

Together with 160641659911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160641659929) 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, 80320829954 + 80320829955.

It is an arithmetic number, because the mean of its divisors is an integer number (80320829955).

Almost surely, 2^160641659909 is an apocalyptic number.

It is an amenable number.

160641659909 is a deficient number, since it is larger than the sum of its proper divisors (1).

160641659909 is an equidigital number, since it uses as much as digits as its factorization.

160641659909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3149280, while the sum is 56.

The spelling of 160641659909 in words is "one hundred sixty billion, six hundred forty-one million, six hundred fifty-nine thousand, nine hundred nine".