22164266 has 4 divisors (see below), whose sum is σ = 33246402. Its totient is φ = 11082132.

The previous prime is 22164253. The next prime is 22164343. The reversal of 22164266 is 66246122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13875625 + 8288641 = 3725^2 + 2879^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5541065 + ... + 5541068.

Almost surely, 2^22164266 is an apocalyptic number.

22164266 is a deficient number, since it is larger than the sum of its proper divisors (11082136).

22164266 is a wasteful number, since it uses less digits than its factorization.

22164266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11082135.

The product of its digits is 6912, while the sum is 29.

The square root of 22164266 is about 4707.8940090023. The cubic root of 22164266 is about 280.8995981270.

The spelling of 22164266 in words is "twenty-two million, one hundred sixty-four thousand, two hundred sixty-six".