22066318 has 4 divisors (see below), whose sum is σ = 33099480. Its totient is φ = 11033158.

The previous prime is 22066259. The next prime is 22066321. The reversal of 22066318 is 81366022.

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

It is a congruent number.

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, 5516578 + ... + 5516581.

It is an arithmetic number, because the mean of its divisors is an integer number (8274870).

Almost surely, 2^22066318 is an apocalyptic number.

22066318 is a deficient number, since it is larger than the sum of its proper divisors (11033162).

22066318 is a wasteful number, since it uses less digits than its factorization.

22066318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11033161.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22066318 is about 4697.4799627034. The cubic root of 22066318 is about 280.4852046344.

The spelling of 22066318 in words is "twenty-two million, sixty-six thousand, three hundred eighteen".