664622054314444 has 12 divisors (see below), whose sum is σ = 1163094827845104. Its totient is φ = 332309246358704.

The previous prime is 664622054314417. The next prime is 664622054314481. The reversal of 664622054314444 is 444413450226466.

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 3 ways as a sum of consecutive naturals, for example, 444359719 + ... + 445852894.

It is an arithmetic number, because the mean of its divisors is an integer number (96924568987092).

Almost surely, 2^{664622054314444} is an apocalyptic number.

It is an amenable number.

664622054314444 is a deficient number, since it is larger than the sum of its proper divisors (498472773530660).

664622054314444 is a wasteful number, since it uses less digits than its factorization.

664622054314444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890399264 (or 890399262 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 55.

The spelling of 664622054314444 in words is "six hundred sixty-four trillion, six hundred twenty-two billion, fifty-four million, three hundred fourteen thousand, four hundred forty-four".