2133165643 has 16 divisors (see below), whose sum is σ = 2469396160. Its totient is φ = 1804934016.

The previous prime is 2133165607. The next prime is 2133165719. The reversal of 2133165643 is 3465613312.

It is a cyclic number.

It is not a de Polignac number, because 2133165643 - 2²⁵ = 2099611211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2133165599 and 2133165608.

It is not an unprimeable number, because it can be changed into a prime (2133165043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206305 + ... + 216397.

It is an arithmetic number, because the mean of its divisors is an integer number (154337260).

Almost surely, 2^2133165643 is an apocalyptic number.

2133165643 is a deficient number, since it is larger than the sum of its proper divisors (336230517).

2133165643 is a wasteful number, since it uses less digits than its factorization.

2133165643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10486.

The product of its digits is 38880, while the sum is 34.

The square root of 2133165643 is about 46186.2061983878. The cubic root of 2133165643 is about 1287.2854487494.

Adding to 2133165643 its reverse (3465613312), we get a palindrome (5598778955).

The spelling of 2133165643 in words is "two billion, one hundred thirty-three million, one hundred sixty-five thousand, six hundred forty-three".