2165036516 has 12 divisors (see below), whose sum is σ = 3825599232. Its totient is φ = 1072008168.

The previous prime is 2165036449. The next prime is 2165036521. The reversal of 2165036516 is 6156305612.

It is a super-2 number, since 2×2165036516² = 9374766231226836512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2627060 + ... + 2627883.

It is an arithmetic number, because the mean of its divisors is an integer number (318799936).

Almost surely, 2^2165036516 is an apocalyptic number.

It is an amenable number.

2165036516 is a deficient number, since it is larger than the sum of its proper divisors (1660562716).

2165036516 is a wasteful number, since it uses less digits than its factorization.

2165036516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255050 (or 5255048 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2165036516 is about 46529.9528905844. The cubic root of 2165036516 is about 1293.6647419806.

The spelling of 2165036516 in words is "two billion, one hundred sixty-five million, thirty-six thousand, five hundred sixteen".