160668931 has 2 divisors, whose sum is σ = 160668932. Its totient is φ = 160668930.

The previous prime is 160668929. The next prime is 160669013. The reversal of 160668931 is 139866061.

It is a weak prime.

It is an emirp because it is prime and its reverse (139866061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 160668931 - 2¹ = 160668929 is a prime.

It is a super-2 number, since 2×160668931² = 51629010777365522, which contains 22 as substring.

Together with 160668929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (160668901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80334465 + 80334466.

It is an arithmetic number, because the mean of its divisors is an integer number (80334466).

Almost surely, 2^160668931 is an apocalyptic number.

160668931 is a deficient number, since it is larger than the sum of its proper divisors (1).

160668931 is an equidigital number, since it uses as much as digits as its factorization.

160668931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 160668931 is about 12675.5248806509. The cubic root of 160668931 is about 543.6390372773.

The spelling of 160668931 in words is "one hundred sixty million, six hundred sixty-eight thousand, nine hundred thirty-one".