22166251789 has 16 divisors (see below), whose sum is σ = 25478314560. Its totient is φ = 19072368000.

The previous prime is 22166251741. The next prime is 22166251823. The reversal of 22166251789 is 98715266122.

It is a cyclic number.

It is not a de Polignac number, because 22166251789 - 2⁷ = 22166251661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22166251489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171769 + ... + 271729.

It is an arithmetic number, because the mean of its divisors is an integer number (1592394660).

Almost surely, 2^22166251789 is an apocalyptic number.

It is an amenable number.

22166251789 is a deficient number, since it is larger than the sum of its proper divisors (3312062771).

22166251789 is a wasteful number, since it uses less digits than its factorization.

22166251789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101052.

The product of its digits is 725760, while the sum is 49.

The spelling of 22166251789 in words is "twenty-two billion, one hundred sixty-six million, two hundred fifty-one thousand, seven hundred eighty-nine".