22146566 has 16 divisors (see below), whose sum is σ = 36018528. Its totient is φ = 10152000.

The previous prime is 22146559. The next prime is 22146569. The reversal of 22146566 is 66564122.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22146569) 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, 1106 + ... + 6746.

It is an arithmetic number, because the mean of its divisors is an integer number (2251158).

Almost surely, 2^22146566 is an apocalyptic number.

22146566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22146566 is a deficient number, since it is larger than the sum of its proper divisors (13871962).

22146566 is a wasteful number, since it uses less digits than its factorization.

22146566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5807.

The product of its digits is 17280, while the sum is 32.

The square root of 22146566 is about 4706.0138121344. The cubic root of 22146566 is about 280.8248043580.

The spelling of 22146566 in words is "twenty-two million, one hundred forty-six thousand, five hundred sixty-six".