20127170243541 has 16 divisors (see below), whose sum is σ = 27268475456000. Its totient is φ = 13202455554288.

The previous prime is 20127170243539. The next prime is 20127170243561. The reversal of 20127170243541 is 14534207172102.

It is not a de Polignac number, because 20127170243541 - 2¹ = 20127170243539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20127170243541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20127170243501) 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 15 ways as a sum of consecutive naturals, for example, 58113241 + ... + 58458558.

It is an arithmetic number, because the mean of its divisors is an integer number (1704279716000).

Almost surely, 2^{20127170243541} is an apocalyptic number.

It is an amenable number.

20127170243541 is a deficient number, since it is larger than the sum of its proper divisors (7141305212459).

20127170243541 is a wasteful number, since it uses less digits than its factorization.

20127170243541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116572728.

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 20127170243541 in words is "twenty trillion, one hundred twenty-seven billion, one hundred seventy million, two hundred forty-three thousand, five hundred forty-one".