22066744673 has 4 divisors (see below), whose sum is σ = 22227815940. Its totient is φ = 21905673408.

The previous prime is 22066744657. The next prime is 22066744681. The reversal of 22066744673 is 37644766022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12219754849 + 9846989824 = 110543^2 + 99232^2 .

It is a cyclic number.

It is not a de Polignac number, because 22066744673 - 2⁴ = 22066744657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22066744633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80535428 + ... + 80535701.

It is an arithmetic number, because the mean of its divisors is an integer number (5556953985).

Almost surely, 2^22066744673 is an apocalyptic number.

It is an amenable number.

22066744673 is a deficient number, since it is larger than the sum of its proper divisors (161071267).

22066744673 is a wasteful number, since it uses less digits than its factorization.

22066744673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161071266.

The product of its (nonzero) digits is 2032128, while the sum is 47.

The spelling of 22066744673 in words is "twenty-two billion, sixty-six million, seven hundred forty-four thousand, six hundred seventy-three".