664838483012 has 24 divisors (see below), whose sum is σ = 1269461471040. Its totient is φ = 302145889760.

The previous prime is 664838483009. The next prime is 664838483017. The reversal of 664838483012 is 210384838466.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (664838483017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083248 + ... + 1582119.

It is an arithmetic number, because the mean of its divisors is an integer number (52894227960).

Almost surely, 2^664838483012 is an apocalyptic number.

It is an amenable number.

664838483012 is a deficient number, since it is larger than the sum of its proper divisors (604622988028).

664838483012 is a wasteful number, since it uses less digits than its factorization.

664838483012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671051 (or 2671049 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 53.

The spelling of 664838483012 in words is "six hundred sixty-four billion, eight hundred thirty-eight million, four hundred eighty-three thousand, twelve".