166122 has 24 divisors (see below), whose sum is σ = 393120. Its totient is φ = 50280.

The previous prime is 166099. The next prime is 166147. The reversal of 166122 is 221661.

It is a happy number.

166122 is a `hidden beast` number, since 1 + 661 + 2 + 2 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 166095 and 166104.

It is an unprimeable number.

166122 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, 222 + ... + 617.

It is an arithmetic number, because the mean of its divisors is an integer number (16380).

2¹⁶⁶¹²² is an apocalyptic number.

166122 is an abundant number, since it is smaller than the sum of its proper divisors (226998).

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

166122 is a wasteful number, since it uses less digits than its factorization.

166122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 855 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 166122 is about 407.5806668624. The cubic root of 166122 is about 54.9721070688.

166122 divided by its sum of digits (18) gives a palindrome (9229).

Adding to 166122 its reverse (221661), we get a palindrome (387783).

The spelling of 166122 in words is "one hundred sixty-six thousand, one hundred twenty-two".