664384853999 has 8 divisors (see below), whose sum is σ = 679436864640. Its totient is φ = 649426045216.

The previous prime is 664384853987. The next prime is 664384854031. The reversal of 664384853999 is 999358483466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664384853999 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 (664384853969) 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, 23286047 + ... + 23314560.

It is an arithmetic number, because the mean of its divisors is an integer number (84929608080).

Almost surely, 2^664384853999 is an apocalyptic number.

664384853999 is a deficient number, since it is larger than the sum of its proper divisors (15052010641).

664384853999 is a wasteful number, since it uses less digits than its factorization.

664384853999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46600929.

The product of its digits is 1209323520, while the sum is 74.

The spelling of 664384853999 in words is "six hundred sixty-four billion, three hundred eighty-four million, eight hundred fifty-three thousand, nine hundred ninety-nine".