22166845 has 8 divisors (see below), whose sum is σ = 27166464. Its totient is φ = 17355984.

The previous prime is 22166843. The next prime is 22166899. The reversal of 22166845 is 54866122.

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 22166845 - 2¹ = 22166843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22166845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22166843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46929 + ... + 47398.

It is an arithmetic number, because the mean of its divisors is an integer number (3395808).

Almost surely, 2^22166845 is an apocalyptic number.

It is an amenable number.

22166845 is a deficient number, since it is larger than the sum of its proper divisors (4999619).

22166845 is an equidigital number, since it uses as much as digits as its factorization.

22166845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94379.

The product of its digits is 23040, while the sum is 34.

The square root of 22166845 is about 4708.1679026985. The cubic root of 22166845 is about 280.9104927199.

The spelling of 22166845 in words is "twenty-two million, one hundred sixty-six thousand, eight hundred forty-five".