2061800171 has 8 divisors (see below), whose sum is σ = 2184039360. Its totient is φ = 1939667328.

The previous prime is 2061800123. The next prime is 2061800207. The reversal of 2061800171 is 1710081602.

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 2061800171 - 2¹⁰ = 2061799147 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 2061800171.

It is not an unprimeable number, because it can be changed into a prime (2061800071) 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, 15230 + ... + 65996.

It is an arithmetic number, because the mean of its divisors is an integer number (273004920).

Almost surely, 2^2061800171 is an apocalyptic number.

2061800171 is a deficient number, since it is larger than the sum of its proper divisors (122239189).

2061800171 is a wasteful number, since it uses less digits than its factorization.

2061800171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53173.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 2061800171 is about 45407.0497940573. The cubic root of 2061800171 is about 1272.7668552317.

Adding to 2061800171 its reverse (1710081602), we get a palindrome (3771881773).

The spelling of 2061800171 in words is "two billion, sixty-one million, eight hundred thousand, one hundred seventy-one".