264433500321 has 12 divisors (see below), whose sum is σ = 356877135888. Its totient is φ = 174165022744.

The previous prime is 264433500299. The next prime is 264433500323. The reversal of 264433500321 is 123005334462.

It is a happy number.

It is not a de Polignac number, because 264433500321 - 2¹⁹ = 264432976033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264433500323) 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 11 ways as a sum of consecutive naturals, for example, 6376815 + ... + 6418148.

It is an arithmetic number, because the mean of its divisors is an integer number (29739761324).

Almost surely, 2^264433500321 is an apocalyptic number.

It is an amenable number.

264433500321 is a deficient number, since it is larger than the sum of its proper divisors (92443635567).

264433500321 is an equidigital number, since it uses as much as digits as its factorization.

264433500321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12795132 (or 12795049 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 264433500321 its reverse (123005334462), we get a palindrome (387438834783).

The spelling of 264433500321 in words is "two hundred sixty-four billion, four hundred thirty-three million, five hundred thousand, three hundred twenty-one".