664080286 has 8 divisors (see below), whose sum is σ = 1048547880. Its totient is φ = 314564328.

The previous prime is 664080281. The next prime is 664080289. The reversal of 664080286 is 682080466.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664080281) 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, 8737861 + ... + 8737936.

It is an arithmetic number, because the mean of its divisors is an integer number (131068485).

Almost surely, 2^664080286 is an apocalyptic number.

664080286 is a deficient number, since it is larger than the sum of its proper divisors (384467594).

664080286 is a wasteful number, since it uses less digits than its factorization.

664080286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17475818.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 664080286 is about 25769.7552568898. The cubic root of 664080286 is about 872.4492948424.

The spelling of 664080286 in words is "six hundred sixty-four million, eighty thousand, two hundred eighty-six".