22022555566 has 16 divisors (see below), whose sum is σ = 36140774400. Its totient is φ = 9981401080.

The previous prime is 22022555551. The next prime is 22022555567. The reversal of 22022555566 is 66555522022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022555567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1434766 + ... + 1450033.

It is an arithmetic number, because the mean of its divisors is an integer number (2258798400).

Almost surely, 2^22022555566 is an apocalyptic number.

22022555566 is a deficient number, since it is larger than the sum of its proper divisors (14118218834).

22022555566 is a wasteful number, since it uses less digits than its factorization.

22022555566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885159.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 22022555566 in words is "twenty-two billion, twenty-two million, five hundred fifty-five thousand, five hundred sixty-six".