68166 has 24 divisors (see below), whose sum is σ = 169104. Its totient is φ = 19440.

The previous prime is 68161. The next prime is 68171. The reversal of 68166 is 66186.

It is an interprime number because it is at equal distance from previous prime (68161) and next prime (68171).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145 + ... + 396.

It is an arithmetic number, because the mean of its divisors is an integer number (7046).

2⁶⁸¹⁶⁶ is an apocalyptic number.

68166 is an abundant number, since it is smaller than the sum of its proper divisors (100938).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84552).

68166 is a wasteful number, since it uses less digits than its factorization.

68166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 553 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 68166 is about 261.0861926644. The cubic root of 68166 is about 40.8497374971.

It can be divided in two parts, 681 and 66, that added together give a palindrome (747).

The spelling of 68166 in words is "sixty-eight thousand, one hundred sixty-six".