664016366 has 8 divisors (see below), whose sum is σ = 1072641864. Its totient is φ = 306469080.

The previous prime is 664016357. The next prime is 664016399. The reversal of 664016366 is 663610466.

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

It is a Curzon number.

It is a congruent number.

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, 12769520 + ... + 12769571.

It is an arithmetic number, because the mean of its divisors is an integer number (134080233).

Almost surely, 2^664016366 is an apocalyptic number.

664016366 is a deficient number, since it is larger than the sum of its proper divisors (408625498).

664016366 is a wasteful number, since it uses less digits than its factorization.

664016366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25539106.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 664016366 is about 25768.5150134811. The cubic root of 664016366 is about 872.4213018675.

The spelling of 664016366 in words is "six hundred sixty-four million, sixteen thousand, three hundred sixty-six".