2166196 has 6 divisors (see below), whose sum is σ = 3790850. Its totient is φ = 1083096.

The previous prime is 2166179. The next prime is 2166221. The reversal of 2166196 is 6916612.

2166196 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2131600 + 34596 = 1460^2 + 186^2 .

It is a super-2 number, since 2×2166196² = 9384810220832, which contains 22 as substring.

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, 270771 + ... + 270778.

2^2166196 is an apocalyptic number.

It is an amenable number.

2166196 is a deficient number, since it is larger than the sum of its proper divisors (1624654).

2166196 is a wasteful number, since it uses less digits than its factorization.

2166196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541553 (or 541551 counting only the distinct ones).

The product of its digits is 3888, while the sum is 31.

The square root of 2166196 is about 1471.8002581872. The cubic root of 2166196 is about 129.3895641224.

The spelling of 2166196 in words is "two million, one hundred sixty-six thousand, one hundred ninety-six".