664203055205 has 8 divisors (see below), whose sum is σ = 801048912000. Its totient is φ = 528692280336.

The previous prime is 664203055157. The next prime is 664203055207. The reversal of 664203055205 is 502550302466.

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-664203055205 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664203055207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333769385 + ... + 333771374.

It is an arithmetic number, because the mean of its divisors is an integer number (100131114000).

Almost surely, 2^664203055205 is an apocalyptic number.

It is an amenable number.

664203055205 is a deficient number, since it is larger than the sum of its proper divisors (136845856795).

664203055205 is a wasteful number, since it uses less digits than its factorization.

664203055205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667540963.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 664203055205 in words is "six hundred sixty-four billion, two hundred three million, fifty-five thousand, two hundred five".