556166 has 8 divisors (see below), whose sum is σ = 898464. Its totient is φ = 256680.

The previous prime is 556159. The next prime is 556177. The reversal of 556166 is 661655.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10670 + ... + 10721.

It is an arithmetic number, because the mean of its divisors is an integer number (112308).

2⁵⁵⁶¹⁶⁶ is an apocalyptic number.

556166 is a deficient number, since it is larger than the sum of its proper divisors (342298).

556166 is a wasteful number, since it uses less digits than its factorization.

556166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21406.

The product of its digits is 5400, while the sum is 29.

The square root of 556166 is about 745.7653786547. The cubic root of 556166 is about 82.2371678321.

The spelling of 556166 in words is "five hundred fifty-six thousand, one hundred sixty-six".