664841554014 has 16 divisors (see below), whose sum is σ = 1450563390720. Its totient is φ = 201467137560.

The previous prime is 664841554001. The next prime is 664841554021. The reversal of 664841554014 is 410455148466.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5036678374 + ... + 5036678505.

It is an arithmetic number, because the mean of its divisors is an integer number (90660211920).

Almost surely, 2^664841554014 is an apocalyptic number.

664841554014 is an abundant number, since it is smaller than the sum of its proper divisors (785721836706).

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

664841554014 is a wasteful number, since it uses less digits than its factorization.

664841554014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10073356895.

The product of its (nonzero) digits is 1843200, while the sum is 48.

The spelling of 664841554014 in words is "six hundred sixty-four billion, eight hundred forty-one million, five hundred fifty-four thousand, fourteen".