2311233664 has 32 divisors (see below), whose sum is σ = 4606582140. Its totient is φ = 1155072000.

The previous prime is 2311233643. The next prime is 2311233667. The reversal of 2311233664 is 4663321132.

It can be written as a sum of positive squares in 2 ways, for example, as 1410753600 + 900480064 = 37560^2 + 30008^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (2311233667) 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, 509872 + ... + 514384.

Almost surely, 2^2311233664 is an apocalyptic number.

It is an amenable number.

2311233664 is a deficient number, since it is larger than the sum of its proper divisors (2295348476).

2311233664 is an equidigital number, since it uses as much as digits as its factorization.

2311233664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8528 (or 8516 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

The square root of 2311233664 is about 48075.2916163802. The cubic root of 2311233664 is about 1322.1516911787.

Adding to 2311233664 its reverse (4663321132), we get a palindrome (6974554796).

The spelling of 2311233664 in words is "two billion, three hundred eleven million, two hundred thirty-three thousand, six hundred sixty-four".