20540455183 has 2 divisors, whose sum is σ = 20540455184. Its totient is φ = 20540455182.

The previous prime is 20540455181. The next prime is 20540455217. The reversal of 20540455183 is 38155404502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20540455183 - 2¹ = 20540455181 is a prime.

Together with 20540455181, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20540455181) 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 as a sum of consecutive naturals, namely, 10270227591 + 10270227592.

It is an arithmetic number, because the mean of its divisors is an integer number (10270227592).

Almost surely, 2^20540455183 is an apocalyptic number.

20540455183 is a deficient number, since it is larger than the sum of its proper divisors (1).

20540455183 is an equidigital number, since it uses as much as digits as its factorization.

20540455183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 20540455183 its reverse (38155404502), we get a palindrome (58695859685).

The spelling of 20540455183 in words is "twenty billion, five hundred forty million, four hundred fifty-five thousand, one hundred eighty-three".