664130446 has 32 divisors (see below), whose sum is σ = 1200245760. Its totient is φ = 269238816.

The previous prime is 664130437. The next prime is 664130459. The reversal of 664130446 is 644031466.

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 15 ways as a sum of consecutive naturals, for example, 225435 + ... + 228361.

It is an arithmetic number, because the mean of its divisors is an integer number (37507680).

Almost surely, 2^664130446 is an apocalyptic number.

664130446 is a deficient number, since it is larger than the sum of its proper divisors (536115314).

664130446 is a wasteful number, since it uses less digits than its factorization.

664130446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3808.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 664130446 is about 25770.7284724355. The cubic root of 664130446 is about 872.4712605373.

The spelling of 664130446 in words is "six hundred sixty-four million, one hundred thirty thousand, four hundred forty-six".