2164181324 has 12 divisors (see below), whose sum is σ = 3806543664. Its totient is φ = 1076597424.

The previous prime is 2164181293. The next prime is 2164181359. The reversal of 2164181324 is 4231814612.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1372424 + ... + 1373999.

It is an arithmetic number, because the mean of its divisors is an integer number (317211972).

Almost surely, 2^2164181324 is an apocalyptic number.

It is an amenable number.

2164181324 is a deficient number, since it is larger than the sum of its proper divisors (1642362340).

2164181324 is a wasteful number, since it uses less digits than its factorization.

2164181324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746624 (or 2746622 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 2164181324 is about 46520.7622895412. The cubic root of 2164181324 is about 1293.4943865109.

Adding to 2164181324 its reverse (4231814612), we get a palindrome (6395995936).

The spelling of 2164181324 in words is "two billion, one hundred sixty-four million, one hundred eighty-one thousand, three hundred twenty-four".