22166775 has 18 divisors (see below), whose sum is σ = 39703560. Its totient is φ = 11822160.

The previous prime is 22166741. The next prime is 22166789. The reversal of 22166775 is 57766122.

It is not a de Polignac number, because 22166775 - 2⁷ = 22166647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49035 + ... + 49484.

Almost surely, 2^22166775 is an apocalyptic number.

22166775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22166775 is a deficient number, since it is larger than the sum of its proper divisors (17536785).

22166775 is a wasteful number, since it uses less digits than its factorization.

22166775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98535 (or 98527 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 22166775 is about 4708.1604688031. The cubic root of 22166775 is about 280.9101970268.

The spelling of 22166775 in words is "twenty-two million, one hundred sixty-six thousand, seven hundred seventy-five".