57166 has 8 divisors (see below), whose sum is σ = 86904. Its totient is φ = 28200.

The previous prime is 57163. The next prime is 57173. The reversal of 57166 is 66175.

57166 is nontrivially palindromic in base 15.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 57166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61 + ... + 343.

It is an arithmetic number, because the mean of its divisors is an integer number (10863).

2⁵⁷¹⁶⁶ is an apocalyptic number.

57166 is a deficient number, since it is larger than the sum of its proper divisors (29738).

57166 is a wasteful number, since it uses less digits than its factorization.

57166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386.

The product of its digits is 1260, while the sum is 25.

The square root of 57166 is about 239.0941237254. The cubic root of 57166 is about 38.5223348226.

Subtracting 57166 from its reverse (66175), we obtain a palindrome (9009).

The spelling of 57166 in words is "fifty-seven thousand, one hundred sixty-six".