166025 has 12 divisors (see below), whose sum is σ = 213900. Its totient is φ = 127680.

The previous prime is 166021. The next prime is 166027. The reversal of 166025 is 520661.

It can be written as a sum of positive squares in 6 ways, for example, as 2809 + 163216 = 53^2 + 404^2 .

It is not a de Polignac number, because 166025 - 2² = 166021 is a prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 165988 and 166006.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 611 + ... + 839.

It is an arithmetic number, because the mean of its divisors is an integer number (17825).

2¹⁶⁶⁰²⁵ is an apocalyptic number.

It is an amenable number.

166025 is a deficient number, since it is larger than the sum of its proper divisors (47875).

166025 is a wasteful number, since it uses less digits than its factorization.

166025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 166025 is about 407.4616546376. The cubic root of 166025 is about 54.9614054307.

Adding to 166025 its reverse (520661), we get a palindrome (686686).

The spelling of 166025 in words is "one hundred sixty-six thousand, twenty-five".