2165064033 has 32 divisors (see below), whose sum is σ = 3219829632. Its totient is φ = 1282982400.

The previous prime is 2165064023. The next prime is 2165064073. The reversal of 2165064033 is 3304605612.

It is not a de Polignac number, because 2165064033 - 2⁹ = 2165063521 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2165064023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345141 + ... + 351357.

It is an arithmetic number, because the mean of its divisors is an integer number (100619676).

Almost surely, 2^2165064033 is an apocalyptic number.

It is an amenable number.

2165064033 is a deficient number, since it is larger than the sum of its proper divisors (1054765599).

2165064033 is a wasteful number, since it uses less digits than its factorization.

2165064033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 2165064033 is about 46530.2485808963. The cubic root of 2165064033 is about 1293.6702226613.

Adding to 2165064033 its reverse (3304605612), we get a palindrome (5469669645).

The spelling of 2165064033 in words is "two billion, one hundred sixty-five million, sixty-four thousand, thirty-three".