22166023 has 8 divisors (see below), whose sum is σ = 24961536. Its totient is φ = 19500600.

The previous prime is 22166021. The next prime is 22166029. The reversal of 22166023 is 32066122.

It is a happy number.

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 22166023 - 2¹ = 22166021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22165985 and 22166003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22166021) 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, 32161 + ... + 32842.

It is an arithmetic number, because the mean of its divisors is an integer number (3120192).

Almost surely, 2^22166023 is an apocalyptic number.

22166023 is a deficient number, since it is larger than the sum of its proper divisors (2795513).

22166023 is a wasteful number, since it uses less digits than its factorization.

22166023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65045.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 22166023 is about 4708.0806067866. The cubic root of 22166023 is about 280.9070203978.

Subtracting 22166023 from its reverse (32066122), we obtain a palindrome (9900099).

The spelling of 22166023 in words is "twenty-two million, one hundred sixty-six thousand, twenty-three".