664416245524612 has 72 divisors (see below), whose sum is σ = 1355535263839680. Its totient is φ = 284123830213440.

The previous prime is 664416245524589. The next prime is 664416245524727. The reversal of 664416245524612 is 216425542614466.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3852964689 + ... + 3853137127.

It is an arithmetic number, because the mean of its divisors is an integer number (18826878664440).

Almost surely, 2^{664416245524612} is an apocalyptic number.

It is an amenable number.

664416245524612 is an abundant number, since it is smaller than the sum of its proper divisors (691119018315068).

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

664416245524612 is a wasteful number, since it uses less digits than its factorization.

664416245524612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215561 (or 215552 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 58.

The spelling of 664416245524612 in words is "six hundred sixty-four trillion, four hundred sixteen billion, two hundred forty-five million, five hundred twenty-four thousand, six hundred twelve".