22066186 has 8 divisors (see below), whose sum is σ = 33119460. Its totient is φ = 11026368.

The previous prime is 22066183. The next prime is 22066189. The reversal of 22066186 is 68166022.

It is an interprime number because it is at equal distance from previous prime (22066183) and next prime (22066189).

It can be written as a sum of positive squares in 2 ways, for example, as 21335161 + 731025 = 4619^2 + 855^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22066183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3730 + ... + 7618.

Almost surely, 2^22066186 is an apocalyptic number.

22066186 is a deficient number, since it is larger than the sum of its proper divisors (11053274).

22066186 is a wasteful number, since it uses less digits than its factorization.

22066186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6728.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 22066186 is about 4697.4659125959. The cubic root of 22066186 is about 280.4846453488.

The spelling of 22066186 in words is "twenty-two million, sixty-six thousand, one hundred eighty-six".