2165326608 has 20 divisors (see below), whose sum is σ = 5593760528. Its totient is φ = 721775520.

The previous prime is 2165326591. The next prime is 2165326643. The reversal of 2165326608 is 8066235612.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22555438 + ... + 22555533.

Almost surely, 2^2165326608 is an apocalyptic number.

It is an amenable number.

2165326608 is an abundant number, since it is smaller than the sum of its proper divisors (3428433920).

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

2165326608 is a wasteful number, since it uses less digits than its factorization.

2165326608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45110982 (or 45110976 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2165326608 is about 46533.0700470107. The cubic root of 2165326608 is about 1293.7225185322.

The spelling of 2165326608 in words is "two billion, one hundred sixty-five million, three hundred twenty-six thousand, six hundred eight".