664583454613 has 24 divisors (see below), whose sum is σ = 773342235648. Its totient is φ = 568757958912.

The previous prime is 664583454589. The next prime is 664583454617. The reversal of 664583454613 is 316454385466.

It is not a de Polignac number, because 664583454613 - 2³⁷ = 527144501141 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664583454617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1533781 + ... + 1918762.

It is an arithmetic number, because the mean of its divisors is an integer number (32222593152).

Almost surely, 2^664583454613 is an apocalyptic number.

It is an amenable number.

664583454613 is a deficient number, since it is larger than the sum of its proper divisors (108758781035).

664583454613 is a wasteful number, since it uses less digits than its factorization.

664583454613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452653 (or 3452640 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 55.

The spelling of 664583454613 in words is "six hundred sixty-four billion, five hundred eighty-three million, four hundred fifty-four thousand, six hundred thirteen".