2011005616171 has 4 divisors (see below), whose sum is σ = 2015484471000. Its totient is φ = 2006526761344.

The previous prime is 2011005616159. The next prime is 2011005616201. The reversal of 2011005616171 is 1716165001102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2011005616171 - 2⁷ = 2011005616043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011005616111) 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 in 3 ways as a sum of consecutive naturals, for example, 2239426741 + ... + 2239427638.

It is an arithmetic number, because the mean of its divisors is an integer number (503871117750).

Almost surely, 2^{2011005616171} is an apocalyptic number.

2011005616171 is a deficient number, since it is larger than the sum of its proper divisors (4478854829).

2011005616171 is an equidigital number, since it uses as much as digits as its factorization.

2011005616171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478854828.

The product of its (nonzero) digits is 2520, while the sum is 31.

The spelling of 2011005616171 in words is "two trillion, eleven billion, five million, six hundred sixteen thousand, one hundred seventy-one".