22166366 has 4 divisors (see below), whose sum is σ = 33249552. Its totient is φ = 11083182.

The previous prime is 22166341. The next prime is 22166381. The reversal of 22166366 is 66366122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66366122 = 2 ⋅33183061.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5541590 + ... + 5541593.

It is an arithmetic number, because the mean of its divisors is an integer number (8312388).

Almost surely, 2^22166366 is an apocalyptic number.

22166366 is a deficient number, since it is larger than the sum of its proper divisors (11083186).

22166366 is a wasteful number, since it uses less digits than its factorization.

22166366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11083185.

The product of its digits is 15552, while the sum is 32.

The square root of 22166366 is about 4708.1170333797. The cubic root of 22166366 is about 280.9084693213.

The spelling of 22166366 in words is "twenty-two million, one hundred sixty-six thousand, three hundred sixty-six".