4166 has 4 divisors (see below), whose sum is σ = 6252.
Its totient is φ = 2082.
The previous prime is 4159. The next prime is 4177. The reversal of 4166 is 6614.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6614 = 2 ⋅3307.
It is a plaindrome in base 15.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040 + ... + 1043.
It is an arithmetic number, because the mean of its divisors is an integer number (1563).
4166 is the 35-th centered heptagonal number.
4166 is a deficient number, since it is larger than the sum of its proper divisors (2086).
4166 is a wasteful number, since it uses less digits than its factorization.
4166 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2085.
The product of its digits is 144, while the sum is 17.
The square root of 4166 is about 64.5445582524.
The cubic root of 4166 is about 16.0906314849.
The spelling of 4166 in words is "four thousand, one hundred sixty-six".