2165071601211 has 8 divisors (see below), whose sum is σ = 2886787721040. Its totient is φ = 1443368274432.

The previous prime is 2165071601159. The next prime is 2165071601213. The reversal of 2165071601211 is 1121061705612.

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

It is not a de Polignac number, because 2165071601211 - 2¹⁰ = 2165071600187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2165071601213) 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, 2796150 + ... + 3485483.

It is an arithmetic number, because the mean of its divisors is an integer number (360848465130).

Almost surely, 2^{2165071601211} is an apocalyptic number.

2165071601211 is a deficient number, since it is larger than the sum of its proper divisors (721716119829).

2165071601211 is a wasteful number, since it uses less digits than its factorization.

2165071601211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6396525.

The product of its (nonzero) digits is 5040, while the sum is 33.

The spelling of 2165071601211 in words is "two trillion, one hundred sixty-five billion, seventy-one million, six hundred one thousand, two hundred eleven".