444513523255664 has 20 divisors (see below), whose sum is σ = 873042827355456. Its totient is φ = 219212148454272.

The previous prime is 444513523255651. The next prime is 444513523255673. The reversal of 444513523255664 is 466552325315444.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190288322144 + ... + 190288324479.

Almost surely, 2^{444513523255664} is an apocalyptic number.

It is an amenable number.

444513523255664 is a deficient number, since it is larger than the sum of its proper divisors (428529304099792).

444513523255664 is a wasteful number, since it uses less digits than its factorization.

444513523255664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380576646704 (or 380576646698 counting only the distinct ones).

The product of its digits is 207360000, while the sum is 59.

The spelling of 444513523255664 in words is "four hundred forty-four trillion, five hundred thirteen billion, five hundred twenty-three million, two hundred fifty-five thousand, six hundred sixty-four".