168659 has 4 divisors (see below), whose sum is σ = 176016. Its totient is φ = 161304.

The previous prime is 168643. The next prime is 168673. The reversal of 168659 is 956861.

168659 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.

It is a cyclic number.

It is not a de Polignac number, because 168659 - 2⁴ = 168643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3644 + ... + 3689.

It is an arithmetic number, because the mean of its divisors is an integer number (44004).

2¹⁶⁸⁶⁵⁹ is an apocalyptic number.

168659 is a deficient number, since it is larger than the sum of its proper divisors (7357).

168659 is an equidigital number, since it uses as much as digits as its factorization.

168659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7356.

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

The square root of 168659 is about 410.6811415198. The cubic root of 168659 is about 55.2505374531.

The spelling of 168659 in words is "one hundred sixty-eight thousand, six hundred fifty-nine".