664203662 has 8 divisors (see below), whose sum is σ = 996897000. Its totient is φ = 331904664.

The previous prime is 664203643. The next prime is 664203679. The reversal of 664203662 is 266302466.

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

It is a super-2 number, since 2×664203662² = 882333009228420488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 94337 + ... + 101132.

It is an arithmetic number, because the mean of its divisors is an integer number (124612125).

Almost surely, 2^664203662 is an apocalyptic number.

664203662 is a deficient number, since it is larger than the sum of its proper divisors (332693338).

664203662 is a wasteful number, since it uses less digits than its factorization.

664203662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197170.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 664203662 is about 25772.1489596813. The cubic root of 664203662 is about 872.5033207592.

The spelling of 664203662 in words is "six hundred sixty-four million, two hundred three thousand, six hundred sixty-two".