996166 has 16 divisors (see below), whose sum is σ = 1605744. Its totient is φ = 461824.

The previous prime is 996161. The next prime is 996167. The reversal of 996166 is 661699.

996166 is a nontrivial binomial coefficient, being equal to C(1412, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996161) 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 7 ways as a sum of consecutive naturals, for example, 2646 + ... + 2998.

It is an arithmetic number, because the mean of its divisors is an integer number (100359).

2⁹⁹⁶¹⁶⁶ is an apocalyptic number.

996166 is the 1411-st triangular number and also the 706-th hexagonal number.

996166 is the 471-st centered nonagonal number.

996166 is a deficient number, since it is larger than the sum of its proper divisors (609578).

996166 is a wasteful number, since it uses less digits than its factorization.

996166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its digits is 17496, while the sum is 37.

The square root of 996166 is about 998.0811590247. The cubic root of 996166 is about 99.8720363228.

The spelling of 996166 in words is "nine hundred ninety-six thousand, one hundred sixty-six".