500166 has 24 divisors (see below), whose sum is σ = 1114464. Its totient is φ = 162000.

The previous prime is 500153. The next prime is 500167. The reversal of 500166 is 661005.

500166 is a `hidden beast` number, since 500 + 166 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500167) by changing a digit.

500166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291 + ... + 1041.

It is an arithmetic number, because the mean of its divisors is an integer number (46436).

2⁵⁰⁰¹⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 500166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557232).

500166 is an abundant number, since it is smaller than the sum of its proper divisors (614298).

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

500166 is a wasteful number, since it uses less digits than its factorization.

500166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 500166 is about 707.2241511713. The cubic root of 500166 is about 79.3788352457.

It can be divided in two parts, 500 and 166, that added together give a palindrome (666).

The spelling of 500166 in words is "five hundred thousand, one hundred sixty-six".