22166065 has 8 divisors (see below), whose sum is σ = 27999360. Its totient is φ = 16799472.

The previous prime is 22166059. The next prime is 22166069. The reversal of 22166065 is 56066122.

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

It is a cyclic number.

It is not a de Polignac number, because 22166065 - 2⁵ = 22166033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22166069) 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, 116569 + ... + 116758.

It is an arithmetic number, because the mean of its divisors is an integer number (3499920).

Almost surely, 2^22166065 is an apocalyptic number.

It is an amenable number.

22166065 is a deficient number, since it is larger than the sum of its proper divisors (5833295).

22166065 is a wasteful number, since it uses less digits than its factorization.

22166065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233351.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 22166065 is about 4708.0850672009. The cubic root of 22166065 is about 280.9071978178.

It can be divided in two parts, 2216 and 6065, that added together give a square (8281 = 91²).

The spelling of 22166065 in words is "twenty-two million, one hundred sixty-six thousand, sixty-five".