664363300326 has 16 divisors (see below), whose sum is σ = 1449519928128. Its totient is φ = 201322212200.

The previous prime is 664363300247. The next prime is 664363300327. The reversal of 664363300326 is 623003363466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664363300327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5033055240 + ... + 5033055371.

It is an arithmetic number, because the mean of its divisors is an integer number (90594995508).

Almost surely, 2^664363300326 is an apocalyptic number.

664363300326 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

664363300326 is an abundant number, since it is smaller than the sum of its proper divisors (785156627802).

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

664363300326 is a wasteful number, since it uses less digits than its factorization.

664363300326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10066110627.

The product of its (nonzero) digits is 839808, while the sum is 42.

The spelling of 664363300326 in words is "six hundred sixty-four billion, three hundred sixty-three million, three hundred thousand, three hundred twenty-six".