5205556011171 has 8 divisors (see below), whose sum is σ = 6945137010880. Its totient is φ = 3468172842792.

The previous prime is 5205556011167. The next prime is 5205556011197. The reversal of 5205556011171 is 1711106555025.

It is a happy number.

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

It is not a de Polignac number, because 5205556011171 - 2² = 5205556011167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5205556011571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549452305 + ... + 549461778.

It is an arithmetic number, because the mean of its divisors is an integer number (868142126360).

Almost surely, 2^{5205556011171} is an apocalyptic number.

5205556011171 is a deficient number, since it is larger than the sum of its proper divisors (1739580999709).

5205556011171 is a wasteful number, since it uses less digits than its factorization.

5205556011171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098915665.

The product of its (nonzero) digits is 52500, while the sum is 39.

The spelling of 5205556011171 in words is "five trillion, two hundred five billion, five hundred fifty-six million, eleven thousand, one hundred seventy-one".