22556344231161 has 24 divisors (see below), whose sum is σ = 35091737136456. Its totient is φ = 13879208977920.

The previous prime is 22556344231133. The next prime is 22556344231163. The reversal of 22556344231161 is 16113244365522.

22556344231161 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 63 + 4 + 423 + 1 + 161 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3101364022761 + 19454980208400 = 1761069^2 + 4410780^2 .

It is not a de Polignac number, because 22556344231161 - 2¹⁴ = 22556344214777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22556344231163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10229520 + ... + 12237473.

It is an arithmetic number, because the mean of its divisors is an integer number (1462155714019).

Almost surely, 2^{22556344231161} is an apocalyptic number.

It is an amenable number.

22556344231161 is a deficient number, since it is larger than the sum of its proper divisors (12535392905295).

22556344231161 is a wasteful number, since it uses less digits than its factorization.

22556344231161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22475593 (or 22475590 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

Adding to 22556344231161 its reverse (16113244365522), we get a palindrome (38669588596683).

The spelling of 22556344231161 in words is "twenty-two trillion, five hundred fifty-six billion, three hundred forty-four million, two hundred thirty-one thousand, one hundred sixty-one".