22338159138 has 12 divisors (see below), whose sum is σ = 48399344838. Its totient is φ = 7446053040.

The previous prime is 22338159133. The next prime is 22338159163. The reversal of 22338159138 is 83195183322.

22338159138 is a `hidden beast` number, since 2 + 23 + 3 + 8 + 1 + 591 + 38 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11612864169 + 10725294969 = 107763^2 + 103563^2 .

It is a super-2 number, since 2×22338159138² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22338159093 and 22338159102.

It is not an unprimeable number, because it can be changed into a prime (22338159133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 620504403 + ... + 620504438.

Almost surely, 2^22338159138 is an apocalyptic number.

22338159138 is an abundant number, since it is smaller than the sum of its proper divisors (26061185700).

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

22338159138 is a wasteful number, since it uses less digits than its factorization.

22338159138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241008849 (or 1241008846 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

It can be divided in two parts, 22338 and 159138, that added together give a square (181476 = 426²).

The spelling of 22338159138 in words is "twenty-two billion, three hundred thirty-eight million, one hundred fifty-nine thousand, one hundred thirty-eight".