22555431045 has 64 divisors (see below), whose sum is σ = 47819427840. Its totient is φ = 9862737984.

The previous prime is 22555431043. The next prime is 22555431061. The reversal of 22555431045 is 54013455522.

22555431045 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 543 + 104 + 5 = 666.

It is not a de Polignac number, because 22555431045 - 2¹ = 22555431043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22555431043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 497139 + ... + 540608.

It is an arithmetic number, because the mean of its divisors is an integer number (747178560).

Almost surely, 2^22555431045 is an apocalyptic number.

It is an amenable number.

22555431045 is an abundant number, since it is smaller than the sum of its proper divisors (25263996795).

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

22555431045 is a wasteful number, since it uses less digits than its factorization.

22555431045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037791 (or 1037785 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 22555431045 its reverse (54013455522), we get a palindrome (76568886567).

The spelling of 22555431045 in words is "twenty-two billion, five hundred fifty-five million, four hundred thirty-one thousand, forty-five".