22143638356 has 12 divisors (see below), whose sum is σ = 44287276768. Its totient is φ = 9490130712.

The previous prime is 22143638353. The next prime is 22143638359. The reversal of 22143638356 is 65383634122.

It is an interprime number because it is at equal distance from previous prime (22143638353) and next prime (22143638359).

22143638356 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143638353) 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 3 ways as a sum of consecutive naturals, for example, 395422086 + ... + 395422141.

Almost surely, 2^22143638356 is an apocalyptic number.

It is an amenable number.

22143638356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22143638356 is a wasteful number, since it uses less digits than its factorization.

22143638356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790844238 (or 790844236 counting only the distinct ones).

The product of its digits is 622080, while the sum is 43.

The spelling of 22143638356 in words is "twenty-two billion, one hundred forty-three million, six hundred thirty-eight thousand, three hundred fifty-six".