664003002 has 16 divisors (see below), whose sum is σ = 1430160480. Its totient is φ = 204308592.

The previous prime is 664002991. The next prime is 664003007. The reversal of 664003002 is 200300466.

It is a self number, because there is not a number n which added to its sum of digits gives 664003002.

It is not an unprimeable number, because it can be changed into a prime (664003007) 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 7 ways as a sum of consecutive naturals, for example, 4256352 + ... + 4256507.

It is an arithmetic number, because the mean of its divisors is an integer number (89385030).

Almost surely, 2^664003002 is an apocalyptic number.

664003002 is an abundant number, since it is smaller than the sum of its proper divisors (766157478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664003002 is a wasteful number, since it uses less digits than its factorization.

664003002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8512877.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 664003002 is about 25768.2557034814. The cubic root of 664003002 is about 872.4154490416.

Adding to 664003002 its reverse (200300466), we get a palindrome (864303468).

The spelling of 664003002 in words is "six hundred sixty-four million, three thousand, two".