664612244814 has 32 divisors (see below), whose sum is σ = 1531075239936. Its totient is φ = 188394020640.

The previous prime is 664612244771. The next prime is 664612244971. The reversal of 664612244814 is 418442216466.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62294277 + ... + 62304944.

It is an arithmetic number, because the mean of its divisors is an integer number (47846101248).

Almost surely, 2^664612244814 is an apocalyptic number.

664612244814 is an abundant number, since it is smaller than the sum of its proper divisors (866462995122).

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

664612244814 is a wasteful number, since it uses less digits than its factorization.

664612244814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124599360.

The product of its digits is 1769472, while the sum is 48.

The spelling of 664612244814 in words is "six hundred sixty-four billion, six hundred twelve million, two hundred forty-four thousand, eight hundred fourteen".