2165020182 has 96 divisors (see below), whose sum is σ = 5162766336. Its totient is φ = 651672000.

The previous prime is 2165020177. The next prime is 2165020219. The reversal of 2165020182 is 2810205612.

It is a happy number.

2165020182 is a `hidden beast` number, since 2 + 1 + 650 + 2 + 0 + 1 + 8 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2508283 + ... + 2509145.

It is an arithmetic number, because the mean of its divisors is an integer number (53778816).

Almost surely, 2^2165020182 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2165020182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2581383168).

2165020182 is an abundant number, since it is smaller than the sum of its proper divisors (2997746154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2165020182 is a wasteful number, since it uses less digits than its factorization.

2165020182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 2165020182 is about 46529.7773689065. Note that the first 3 decimals coincide. The cubic root of 2165020182 is about 1293.6614886447.

Adding to 2165020182 its reverse (2810205612), we get a palindrome (4975225794).

The spelling of 2165020182 in words is "two billion, one hundred sixty-five million, twenty thousand, one hundred eighty-two".