22561343143461 has 24 divisors (see below), whose sum is σ = 33025157832576. Its totient is φ = 14839892928000.

The previous prime is 22561343143453. The next prime is 22561343143481. The reversal of 22561343143461 is 16434134316522.

22561343143461 is a `hidden beast` number, since 2 + 2 + 5 + 6 + 1 + 3 + 43 + 143 + 461 = 666.

It is not a de Polignac number, because 22561343143461 - 2³ = 22561343143453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22561343143481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19547260 + ... + 20669253.

It is an arithmetic number, because the mean of its divisors is an integer number (1376048243024).

Almost surely, 2^{22561343143461} is an apocalyptic number.

It is an amenable number.

22561343143461 is a deficient number, since it is larger than the sum of its proper divisors (10463814689115).

22561343143461 is a wasteful number, since it uses less digits than its factorization.

22561343143461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40217353 (or 40217350 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

Adding to 22561343143461 its reverse (16434134316522), we get a palindrome (38995477459983).

The spelling of 22561343143461 in words is "twenty-two trillion, five hundred sixty-one billion, three hundred forty-three million, one hundred forty-three thousand, four hundred sixty-one".