168669 has 8 divisors (see below), whose sum is σ = 249920. Its totient is φ = 112428.

The previous prime is 168643. The next prime is 168673. The reversal of 168669 is 966861.

It is not a de Polignac number, because 168669 - 2⁷ = 168541 is a prime.

It is a super-2 number, since 2×168669² = 56898463122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 3097 + ... + 3150.

It is an arithmetic number, because the mean of its divisors is an integer number (31240).

2¹⁶⁸⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

168669 is a deficient number, since it is larger than the sum of its proper divisors (81251).

168669 is an equidigital number, since it uses as much as digits as its factorization.

168669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6256 (or 6250 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 168669 is about 410.6933162349. The cubic root of 168669 is about 55.2516293890.

The spelling of 168669 in words is "one hundred sixty-eight thousand, six hundred sixty-nine".