22540231045 has 8 divisors (see below), whose sum is σ = 27049164696. Its totient is φ = 18031593216.

The previous prime is 22540231039. The next prime is 22540231057. The reversal of 22540231045 is 54013204522.

It can be written as a sum of positive squares in 4 ways, for example, as 241678116 + 22298552929 = 15546^2 + 149327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22540231045 - 2¹⁷ = 22540099973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162289 + ... + 267241.

It is an arithmetic number, because the mean of its divisors is an integer number (3381145587).

Almost surely, 2^22540231045 is an apocalyptic number.

It is an amenable number.

22540231045 is a deficient number, since it is larger than the sum of its proper divisors (4508933651).

22540231045 is a wasteful number, since it uses less digits than its factorization.

22540231045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147911.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22540231045 its reverse (54013204522), we get a palindrome (76553435567).

The spelling of 22540231045 in words is "twenty-two billion, five hundred forty million, two hundred thirty-one thousand, forty-five".