2165928000 has 112 divisors (see below), whose sum is σ = 7151973504. Its totient is φ = 577574400.

The previous prime is 2165927999. The next prime is 2165928019. The reversal of 2165928000 is 8295612.

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, 21124 + ... + 69123.

Almost surely, 2^2165928000 is an apocalyptic number.

2165928000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2165928000 is an abundant number, since it is smaller than the sum of its proper divisors (4986045504).

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

2165928000 is an equidigital number, since it uses as much as digits as its factorization.

2165928000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90277 (or 90257 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 2165928000 is about 46539.5315833754. The cubic root of 2165928000 is about 1293.8422791188.

The spelling of 2165928000 in words is "two billion, one hundred sixty-five million, nine hundred twenty-eight thousand".