445323646323544 has 16 divisors (see below), whose sum is σ = 835534439021520. Its totient is φ = 222514462584480.

The previous prime is 445323646323541. The next prime is 445323646323551.

445323646323544 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445323646323541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18420059319 + ... + 18420083494.

It is an arithmetic number, because the mean of its divisors is an integer number (52220902438845).

Almost surely, 2^{445323646323544} is an apocalyptic number.

It is an amenable number.

445323646323544 is a deficient number, since it is larger than the sum of its proper divisors (390210792697976).

445323646323544 is a wasteful number, since it uses less digits than its factorization.

445323646323544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36840144330 (or 36840144326 counting only the distinct ones).

The product of its digits is 298598400, while the sum is 58.

The spelling of 445323646323544 in words is "four hundred forty-five trillion, three hundred twenty-three billion, six hundred forty-six million, three hundred twenty-three thousand, five hundred forty-four".