2031322664 has 16 divisors (see below), whose sum is σ = 4352834400. Its totient is φ = 870566832.

The previous prime is 2031322663. The next prime is 2031322693. The reversal of 2031322664 is 4662231302.

It is not an unprimeable number, because it can be changed into a prime (2031322663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18136754 + ... + 18136865.

It is an arithmetic number, because the mean of its divisors is an integer number (272052150).

Almost surely, 2^2031322664 is an apocalyptic number.

It is an amenable number.

2031322664 is an abundant number, since it is smaller than the sum of its proper divisors (2321511736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031322664 is a wasteful number, since it uses less digits than its factorization.

2031322664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36273632 (or 36273628 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 2031322664 is about 45070.1970707917. The cubic root of 2031322664 is about 1266.4643561777.

Adding to 2031322664 its reverse (4662231302), we get a palindrome (6693553966).

The spelling of 2031322664 in words is "two billion, thirty-one million, three hundred twenty-two thousand, six hundred sixty-four".