664480329013 has 16 divisors (see below), whose sum is σ = 705740474880. Its totient is φ = 624597465600.

The previous prime is 664480328957. The next prime is 664480329049. The reversal of 664480329013 is 310923084466.

It is a cyclic number.

It is not a de Polignac number, because 664480329013 - 2²⁵ = 664446774581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664484329013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 863028 + ... + 1440061.

It is an arithmetic number, because the mean of its divisors is an integer number (44108779680).

Almost surely, 2^664480329013 is an apocalyptic number.

It is an amenable number.

664480329013 is a deficient number, since it is larger than the sum of its proper divisors (41260145867).

664480329013 is a wasteful number, since it uses less digits than its factorization.

664480329013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303388.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 664480329013 in words is "six hundred sixty-four billion, four hundred eighty million, three hundred twenty-nine thousand, thirteen".