664562452533 has 16 divisors (see below), whose sum is σ = 1012702431360. Its totient is φ = 379736534016.

The previous prime is 664562452529. The next prime is 664562452549. The reversal of 664562452533 is 335254265466.

It is not a de Polignac number, because 664562452533 - 2² = 664562452529 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664562452523) 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 15 ways as a sum of consecutive naturals, for example, 63741 + ... + 1154637.

It is an arithmetic number, because the mean of its divisors is an integer number (63293901960).

Almost surely, 2^664562452533 is an apocalyptic number.

It is an amenable number.

664562452533 is a deficient number, since it is larger than the sum of its proper divisors (348139978827).

664562452533 is a wasteful number, since it uses less digits than its factorization.

664562452533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119916.

The product of its digits is 15552000, while the sum is 51.

The spelling of 664562452533 in words is "six hundred sixty-four billion, five hundred sixty-two million, four hundred fifty-two thousand, five hundred thirty-three".