22085566 has 16 divisors (see below), whose sum is σ = 35047584. Its totient is φ = 10416384.

The previous prime is 22085551. The next prime is 22085573. The reversal of 22085566 is 66558022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70 + ... + 6646.

It is an arithmetic number, because the mean of its divisors is an integer number (2190474).

Almost surely, 2^22085566 is an apocalyptic number.

22085566 is a deficient number, since it is larger than the sum of its proper divisors (12962018).

22085566 is a wasteful number, since it uses less digits than its factorization.

22085566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6675.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 22085566 is about 4699.5282741994. The cubic root of 22085566 is about 280.5667347780.

The spelling of 22085566 in words is "twenty-two million, eighty-five thousand, five hundred sixty-six".