2165050515 has 16 divisors (see below), whose sum is σ = 3472358400. Its totient is φ = 1151934432.

The previous prime is 2165050471. The next prime is 2165050553. The reversal of 2165050515 is 5150505612.

It is not a de Polignac number, because 2165050515 - 2⁸ = 2165050259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165955 + ... + 178524.

It is an arithmetic number, because the mean of its divisors is an integer number (217022400).

Almost surely, 2^2165050515 is an apocalyptic number.

2165050515 is a deficient number, since it is larger than the sum of its proper divisors (1307307885).

2165050515 is a wasteful number, since it uses less digits than its factorization.

2165050515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344906.

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 2165050515 is about 46530.1033203237. The cubic root of 2165050515 is about 1293.6675302282.

The spelling of 2165050515 in words is "two billion, one hundred sixty-five million, fifty thousand, five hundred fifteen".