22021366760 has 16 divisors (see below), whose sum is σ = 49548075300. Its totient is φ = 8808546688.

The previous prime is 22021366733. The next prime is 22021366771. The reversal of 22021366760 is 6766312022.

It can be written as a sum of positive squares in 2 ways, for example, as 20918993956 + 1102372804 = 144634^2 + 33202^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22021366760.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275267045 + ... + 275267124.

Almost surely, 2^22021366760 is an apocalyptic number.

22021366760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021366760 is an abundant number, since it is smaller than the sum of its proper divisors (27526708540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22021366760 is a wasteful number, since it uses less digits than its factorization.

22021366760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550534180 (or 550534176 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

Adding to 22021366760 its reverse (6766312022), we get a palindrome (28787678782).

The spelling of 22021366760 in words is "twenty-two billion, twenty-one million, three hundred sixty-six thousand, seven hundred sixty".