160966409 has 2 divisors, whose sum is σ = 160966410. Its totient is φ = 160966408.

The previous prime is 160966363. The next prime is 160966411. The reversal of 160966409 is 904669061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101445184 + 59521225 = 10072^2 + 7715^2 .

It is an emirp because it is prime and its reverse (904669061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 160966409 - 2²⁴ = 144189193 is a prime.

Together with 160966411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (160966009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80483204 + 80483205.

It is an arithmetic number, because the mean of its divisors is an integer number (80483205).

Almost surely, 2^160966409 is an apocalyptic number.

It is an amenable number.

160966409 is a deficient number, since it is larger than the sum of its proper divisors (1).

160966409 is an equidigital number, since it uses as much as digits as its factorization.

160966409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 160966409 is about 12687.2538005669. The cubic root of 160966409 is about 543.9743457211.

The spelling of 160966409 in words is "one hundred sixty million, nine hundred sixty-six thousand, four hundred nine".