445113203606561 has 8 divisors (see below), whose sum is σ = 511821667952064. Its totient is φ = 379184955218640.

The previous prime is 445113203606531. The next prime is 445113203606569. The reversal of 445113203606561 is 165606302311544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445113203606561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445113203606569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195053988170 + ... + 195053990451.

It is an arithmetic number, because the mean of its divisors is an integer number (63977708494008).

Almost surely, 2^{445113203606561} is an apocalyptic number.

It is an amenable number.

445113203606561 is a deficient number, since it is larger than the sum of its proper divisors (66708464345503).

445113203606561 is a wasteful number, since it uses less digits than its factorization.

445113203606561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390107978791.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 445113203606561 in words is "four hundred forty-five trillion, one hundred thirteen billion, two hundred three million, six hundred six thousand, five hundred sixty-one".