22166307 has 12 divisors (see below), whose sum is σ = 32062680. Its totient is φ = 14756928.

The previous prime is 22166299. The next prime is 22166311. The reversal of 22166307 is 70366122.

It is a happy number.

22166307 is a `hidden beast` number, since 2 + 21 + 6 + 630 + 7 = 666.

It is not a de Polignac number, because 22166307 - 2³ = 22166299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22166327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7963 + ... + 10379.

It is an arithmetic number, because the mean of its divisors is an integer number (2671890).

Almost surely, 2^22166307 is an apocalyptic number.

22166307 is a deficient number, since it is larger than the sum of its proper divisors (9896373).

22166307 is a wasteful number, since it uses less digits than its factorization.

22166307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442 (or 3439 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 22166307 is about 4708.1107676009. The cubic root of 22166307 is about 280.9082200906.

The spelling of 22166307 in words is "twenty-two million, one hundred sixty-six thousand, three hundred seven".