2165087232 has 528 divisors, whose sum is σ = 8154461952. Its totient is φ = 557383680.

The previous prime is 2165087231. The next prime is 2165087257. The reversal of 2165087232 is 2327805612.

It is a tau number, because it is divible by the number of its divisors (528).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165087231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19160008 + ... + 19160120.

Almost surely, 2^2165087232 is an apocalyptic number.

2165087232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2165087232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4077230976).

2165087232 is an abundant number, since it is smaller than the sum of its proper divisors (5989374720).

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

2165087232 is a wasteful number, since it uses less digits than its factorization.

2165087232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 2165087232 is about 46530.4978696768. The cubic root of 2165087232 is about 1293.6748432711.

The spelling of 2165087232 in words is "two billion, one hundred sixty-five million, eighty-seven thousand, two hundred thirty-two".