22206543508 has 6 divisors (see below), whose sum is σ = 38861451146. Its totient is φ = 11103271752.

The previous prime is 22206543497. The next prime is 22206543509. The reversal of 22206543508 is 80534560222.

It can be written as a sum of positive squares in only one way, i.e., 18510146704 + 3696396804 = 136052^2 + 60798^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22206543509) 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 as a sum of consecutive naturals, namely, 2775817935 + ... + 2775817942.

Almost surely, 2^22206543508 is an apocalyptic number.

It is an amenable number.

22206543508 is a deficient number, since it is larger than the sum of its proper divisors (16654907638).

22206543508 is a wasteful number, since it uses less digits than its factorization.

22206543508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551635881 (or 5551635879 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 22206543508 in words is "twenty-two billion, two hundred six million, five hundred forty-three thousand, five hundred eight".