115564422447 has 12 divisors (see below), whose sum is σ = 166941580104. Its totient is φ = 77035936560.

The previous prime is 115564422443. The next prime is 115564422563. The reversal of 115564422447 is 744224465511.

115564422447 is a `hidden beast` number, since 1 + 1 + 5 + 564 + 42 + 2 + 4 + 47 = 666.

It is not a de Polignac number, because 115564422447 - 2² = 115564422443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115564422443) 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 11 ways as a sum of consecutive naturals, for example, 478929 + ... + 678602.

It is an arithmetic number, because the mean of its divisors is an integer number (13911798342).

Almost surely, 2^115564422447 is an apocalyptic number.

115564422447 is a deficient number, since it is larger than the sum of its proper divisors (51377157657).

115564422447 is a wasteful number, since it uses less digits than its factorization.

115564422447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168630 (or 1168627 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 45.

Adding to 115564422447 its reverse (744224465511), we get a palindrome (859788887958).

The spelling of 115564422447 in words is "one hundred fifteen billion, five hundred sixty-four million, four hundred twenty-two thousand, four hundred forty-seven".