664484466 has 16 divisors (see below), whose sum is σ = 1333245888. Its totient is φ = 220782000.

The previous prime is 664484437. The next prime is 664484521.

664484466 is nontrivially palindromic in base 10.

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 7 ways as a sum of consecutive naturals, for example, 176185 + ... + 179916.

It is an arithmetic number, because the mean of its divisors is an integer number (83327868).

Almost surely, 2^664484466 is an apocalyptic number.

664484466 is an abundant number, since it is smaller than the sum of its proper divisors (668761422).

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

664484466 is a wasteful number, since it uses less digits than its factorization.

664484466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356417.

The product of its digits is 2654208, while the sum is 48.

The square root of 664484466 is about 25777.5962029046. The cubic root of 664484466 is about 872.6262589072.

The spelling of 664484466 in words is "six hundred sixty-four million, four hundred eighty-four thousand, four hundred sixty-six".