664066002 has 16 divisors (see below), whose sum is σ = 1406257632. Its totient is φ = 208334400.

The previous prime is 664066001. The next prime is 664066003. The reversal of 664066002 is 200660466.

It is an interprime number because it is at equal distance from previous prime (664066001) and next prime (664066003).

It is not an unprimeable number, because it can be changed into a prime (664066001) 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, 3255124 + ... + 3255327.

It is an arithmetic number, because the mean of its divisors is an integer number (87891102).

Almost surely, 2^664066002 is an apocalyptic number.

664066002 is an abundant number, since it is smaller than the sum of its proper divisors (742191630).

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

664066002 is a wasteful number, since it uses less digits than its factorization.

664066002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510473.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 664066002 is about 25769.4781088015. The cubic root of 664066002 is about 872.4430394968.

The spelling of 664066002 in words is "six hundred sixty-four million, sixty-six thousand, two".