166028 has 6 divisors (see below), whose sum is σ = 290556. Its totient is φ = 83012.

The previous prime is 166027. The next prime is 166031. The reversal of 166028 is 820661.

It is an Ulam number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 165994 and 166012.

It is not an unprimeable number, because it can be changed into a prime (166021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20750 + ... + 20757.

It is an arithmetic number, because the mean of its divisors is an integer number (48426).

2¹⁶⁶⁰²⁸ is an apocalyptic number.

It is an amenable number.

166028 is a deficient number, since it is larger than the sum of its proper divisors (124528).

166028 is a wasteful number, since it uses less digits than its factorization.

166028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41511 (or 41509 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 166028 is about 407.4653359490. The cubic root of 166028 is about 54.9617364716.

Adding to 166028 its reverse (820661), we get a palindrome (986689).

The spelling of 166028 in words is "one hundred sixty-six thousand, twenty-eight".