22166563 has 8 divisors (see below), whose sum is σ = 22740480. Its totient is φ = 21597000.

The previous prime is 22166539. The next prime is 22166579. The reversal of 22166563 is 36566122.

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 22166563 - 2¹³ = 22158371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22161563) 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, 10858 + ... + 12736.

It is an arithmetic number, because the mean of its divisors is an integer number (2842560).

Almost surely, 2^22166563 is an apocalyptic number.

22166563 is a deficient number, since it is larger than the sum of its proper divisors (573917).

22166563 is a wasteful number, since it uses less digits than its factorization.

22166563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177.

The product of its digits is 12960, while the sum is 31.

The square root of 22166563 is about 4708.1379546483. The cubic root of 22166563 is about 280.9093014950.

The spelling of 22166563 in words is "twenty-two million, one hundred sixty-six thousand, five hundred sixty-three".