2165512632 has 64 divisors (see below), whose sum is σ = 5745492000. Its totient is φ = 677806080.

The previous prime is 2165512607. The next prime is 2165512651. The reversal of 2165512632 is 2362155612.

It is a junction number, because it is equal to n+sod(n) for n = 2165512593 and 2165512602.

It is a congruent number.

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, 177282 + ... + 189102.

Almost surely, 2^2165512632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2165512632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2872746000).

2165512632 is an abundant number, since it is smaller than the sum of its proper divisors (3579979368).

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

2165512632 is a wasteful number, since it uses less digits than its factorization.

2165512632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12296 (or 12292 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 2165512632 is about 46535.0688406067. The cubic root of 2165512632 is about 1293.7595655294.

The spelling of 2165512632 in words is "two billion, one hundred sixty-five million, five hundred twelve thousand, six hundred thirty-two".