664557853214 has 8 divisors (see below), whose sum is σ = 996863905800. Its totient is φ = 332269884616.

The previous prime is 664557853213. The next prime is 664557853231. The reversal of 664557853214 is 412358755466.

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

It is a self number, because there is not a number n which added to its sum of digits gives 664557853214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664557853213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4428749 + ... + 4576344.

It is an arithmetic number, because the mean of its divisors is an integer number (124607988225).

Almost surely, 2^664557853214 is an apocalyptic number.

664557853214 is a deficient number, since it is larger than the sum of its proper divisors (332306052586).

664557853214 is a wasteful number, since it uses less digits than its factorization.

664557853214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9041994.

The product of its digits is 24192000, while the sum is 56.

The spelling of 664557853214 in words is "six hundred sixty-four billion, five hundred fifty-seven million, eight hundred fifty-three thousand, two hundred fourteen".