664347625118 has 8 divisors (see below), whose sum is σ = 996924405648. Its totient is φ = 332039489904.

The previous prime is 664347625069. The next prime is 664347625121. The reversal of 664347625118 is 811526743466.

It is a happy number.

664347625118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 664347625118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67155146 + ... + 67165037.

It is an arithmetic number, because the mean of its divisors is an integer number (124615550706).

Almost surely, 2^664347625118 is an apocalyptic number.

664347625118 is a deficient number, since it is larger than the sum of its proper divisors (332576780530).

664347625118 is a wasteful number, since it uses less digits than its factorization.

664347625118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134322658.

The product of its digits is 5806080, while the sum is 53.

The spelling of 664347625118 in words is "six hundred sixty-four billion, three hundred forty-seven million, six hundred twenty-five thousand, one hundred eighteen".