2009115516 has 24 divisors (see below), whose sum is σ = 4689766144. Its totient is φ = 669443760.

The previous prime is 2009115457. The next prime is 2009115523. The reversal of 2009115516 is 6155119002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711 + ... + 63393.

Almost surely, 2^2009115516 is an apocalyptic number.

It is an amenable number.

2009115516 is an abundant number, since it is smaller than the sum of its proper divisors (2680650628).

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

2009115516 is a wasteful number, since it uses less digits than its factorization.

2009115516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65361 (or 65359 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 30.

The square root of 2009115516 is about 44823.1582555268. The cubic root of 2009115516 is about 1261.8322875910.

The spelling of 2009115516 in words is "two billion, nine million, one hundred fifteen thousand, five hundred sixteen".