664918282 has 8 divisors (see below), whose sum is σ = 1139859936. Its totient is φ = 284964972.

The previous prime is 664918271. The next prime is 664918301. The reversal of 664918282 is 282819466.

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

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, 23747068 + ... + 23747095.

It is an arithmetic number, because the mean of its divisors is an integer number (142482492).

Almost surely, 2^664918282 is an apocalyptic number.

664918282 is a deficient number, since it is larger than the sum of its proper divisors (474941654).

664918282 is a wasteful number, since it uses less digits than its factorization.

664918282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47494172.

The product of its digits is 331776, while the sum is 46.

The square root of 664918282 is about 25786.0094237166. The cubic root of 664918282 is about 872.8161188162.

The spelling of 664918282 in words is "six hundred sixty-four million, nine hundred eighteen thousand, two hundred eighty-two".