22242144645 has 128 divisors (see below), whose sum is σ = 46916121600. Its totient is φ = 9782083584.

The previous prime is 22242144643. The next prime is 22242144721. The reversal of 22242144645 is 54644124222.

22242144645 is a `hidden beast` number, since 2 + 2 + 2 + 4 + 2 + 1 + 4 + 4 + 645 = 666.

It is not a de Polignac number, because 22242144645 - 2¹ = 22242144643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22242144643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8576469 + ... + 8579061.

It is an arithmetic number, because the mean of its divisors is an integer number (366532200).

Almost surely, 2^22242144645 is an apocalyptic number.

It is an amenable number.

22242144645 is an abundant number, since it is smaller than the sum of its proper divisors (24673976955).

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

22242144645 is a wasteful number, since it uses less digits than its factorization.

22242144645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956 (or 2950 counting only the distinct ones).

The product of its digits is 122880, while the sum is 36.

Adding to 22242144645 its reverse (54644124222), we get a palindrome (76886268867).

The spelling of 22242144645 in words is "twenty-two billion, two hundred forty-two million, one hundred forty-four thousand, six hundred forty-five".