164668 has 12 divisors (see below), whose sum is σ = 329392. Its totient is φ = 70560.

The previous prime is 164663. The next prime is 164677. The reversal of 164668 is 866461.

164668 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164663) 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, 2913 + ... + 2968.

2¹⁶⁴⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

164668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164668 is a wasteful number, since it uses less digits than its factorization.

164668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892 (or 5890 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 164668 is about 405.7930507044. The cubic root of 164668 is about 54.8112538381.

The spelling of 164668 in words is "one hundred sixty-four thousand, six hundred sixty-eight".