664522338482 has 6 divisors (see below), whose sum is σ = 996785236989. Its totient is φ = 332260592820.

The previous prime is 664522338479. The next prime is 664522338503. The reversal of 664522338482 is 284833225466.

It can be written as a sum of positive squares in 2 ways, for example, as 584003168401 + 80519170081 = 764201^2 + 283759^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=576421.

It is a super-4 number, since 4×664522338482⁴ (a number of 48 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 864632 + ... + 1441052.

Almost surely, 2^664522338482 is an apocalyptic number.

664522338482 is a deficient number, since it is larger than the sum of its proper divisors (332262898507).

664522338482 is an frugal number, since it uses more digits than its factorization.

664522338482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152844 (or 576423 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 53.

The spelling of 664522338482 in words is "six hundred sixty-four billion, five hundred twenty-two million, three hundred thirty-eight thousand, four hundred eighty-two".