18141115171105 has 8 divisors (see below), whose sum is σ = 21769398556200. Its totient is φ = 14512851902976.

The previous prime is 18141115171103. The next prime is 18141115171121. The reversal of 18141115171105 is 50117151114181.

It can be written as a sum of positive squares in 4 ways, for example, as 226610273296 + 17914504897809 = 476036^2 + 4232553^2 .

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 18141115171105 - 2¹ = 18141115171103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18141115171103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2968560 + ... + 6715249.

It is an arithmetic number, because the mean of its divisors is an integer number (2721174819525).

Almost surely, 2^{18141115171105} is an apocalyptic number.

It is an amenable number.

18141115171105 is a deficient number, since it is larger than the sum of its proper divisors (3628283385095).

18141115171105 is an equidigital number, since it uses as much as digits as its factorization.

18141115171105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10058483.

The product of its (nonzero) digits is 5600, while the sum is 37.

Adding to 18141115171105 its reverse (50117151114181), we get a palindrome (68258266285286).

The spelling of 18141115171105 in words is "eighteen trillion, one hundred forty-one billion, one hundred fifteen million, one hundred seventy-one thousand, one hundred five".