22555040145 has 32 divisors (see below), whose sum is σ = 40726350720. Its totient is φ = 10558679040.

The previous prime is 22555040143. The next prime is 22555040161. The reversal of 22555040145 is 54104055522.

It is not a de Polignac number, because 22555040145 - 2¹ = 22555040143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (22555040143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2352064 + ... + 2361633.

It is an arithmetic number, because the mean of its divisors is an integer number (1272698460).

Almost surely, 2^22555040145 is an apocalyptic number.

It is an amenable number.

22555040145 is a deficient number, since it is larger than the sum of its proper divisors (18171310575).

22555040145 is a wasteful number, since it uses less digits than its factorization.

22555040145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4713745.

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 22555040145 its reverse (54104055522), we get a palindrome (76659095667).

The spelling of 22555040145 in words is "twenty-two billion, five hundred fifty-five million, forty thousand, one hundred forty-five".