159668 has 12 divisors (see below), whose sum is σ = 282240. Its totient is φ = 79032.

The previous prime is 159667. The next prime is 159671. The reversal of 159668 is 866951.

It is a plaindrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159667) 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 in 3 ways as a sum of consecutive naturals, for example, 605 + ... + 827.

It is an arithmetic number, because the mean of its divisors is an integer number (23520).

2¹⁵⁹⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

159668 is a deficient number, since it is larger than the sum of its proper divisors (122572).

159668 is a wasteful number, since it uses less digits than its factorization.

159668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 404 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 159668 is about 399.5847844951. The cubic root of 159668 is about 54.2507768865.

The spelling of 159668 in words is "one hundred fifty-nine thousand, six hundred sixty-eight".