664745230 has 8 divisors (see below), whose sum is σ = 1196541432. Its totient is φ = 265898088.

The previous prime is 664745197. The next prime is 664745231. The reversal of 664745230 is 32547466.

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 664745230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664745231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33237252 + ... + 33237271.

It is an arithmetic number, because the mean of its divisors is an integer number (149567679).

Almost surely, 2^664745230 is an apocalyptic number.

664745230 is a deficient number, since it is larger than the sum of its proper divisors (531796202).

664745230 is a wasteful number, since it uses less digits than its factorization.

664745230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66474530.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 664745230 is about 25782.6536648189. The cubic root of 664745230 is about 872.7403923776.

The spelling of 664745230 in words is "six hundred sixty-four million, seven hundred forty-five thousand, two hundred thirty".