22143120566 has 32 divisors (see below), whose sum is σ = 39001165632. Its totient is φ = 9229731840.

The previous prime is 22143120553. The next prime is 22143120569. The reversal of 22143120566 is 66502134122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143120569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1568210 + ... + 1582266.

It is an arithmetic number, because the mean of its divisors is an integer number (1218786426).

Almost surely, 2^22143120566 is an apocalyptic number.

22143120566 is a deficient number, since it is larger than the sum of its proper divisors (16858045066).

22143120566 is a wasteful number, since it uses less digits than its factorization.

22143120566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17144.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 22143120566 its reverse (66502134122), we get a palindrome (88645254688).

The spelling of 22143120566 in words is "twenty-two billion, one hundred forty-three million, one hundred twenty thousand, five hundred sixty-six".