5561491830171 has 16 divisors (see below), whose sum is σ = 7419590373120. Its totient is φ = 3705527881440.

The previous prime is 5561491830157. The next prime is 5561491830203. The reversal of 5561491830171 is 1710381941655.

It is not a de Polignac number, because 5561491830171 - 2²⁷ = 5561357612443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5561491830101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37024165 + ... + 37174073.

It is an arithmetic number, because the mean of its divisors is an integer number (463724398320).

Almost surely, 2^{5561491830171} is an apocalyptic number.

5561491830171 is a deficient number, since it is larger than the sum of its proper divisors (1858098542949).

5561491830171 is a wasteful number, since it uses less digits than its factorization.

5561491830171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156946.

The product of its (nonzero) digits is 907200, while the sum is 51.

The spelling of 5561491830171 in words is "five trillion, five hundred sixty-one billion, four hundred ninety-one million, eight hundred thirty thousand, one hundred seventy-one".