2321533664 has 24 divisors (see below), whose sum is σ = 4573072728. Its totient is φ = 1160118400.

The previous prime is 2321533609. The next prime is 2321533667. The reversal of 2321533664 is 4663351232.

2321533664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321533667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40739 + ... + 79389.

It is an arithmetic number, because the mean of its divisors is an integer number (190544697).

Almost surely, 2^2321533664 is an apocalyptic number.

It is an amenable number.

2321533664 is a deficient number, since it is larger than the sum of its proper divisors (2251539064).

2321533664 is a wasteful number, since it uses less digits than its factorization.

2321533664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40538 (or 40530 counting only the distinct ones).

The product of its digits is 77760, while the sum is 35.

The square root of 2321533664 is about 48182.2961677835. The cubic root of 2321533664 is about 1324.1128346744.

Adding to 2321533664 its reverse (4663351232), we get a palindrome (6984884896).

The spelling of 2321533664 in words is "two billion, three hundred twenty-one million, five hundred thirty-three thousand, six hundred sixty-four".