20444344305445 has 8 divisors (see below), whose sum is σ = 25324607139840. Its totient is φ = 15827879462160.

The previous prime is 20444344305419. The next prime is 20444344305499. The reversal of 20444344305445 is 54450344344402.

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

It is not a de Polignac number, because 20444344305445 - 2⁷ = 20444344305317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20444344305395 and 20444344305404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65949497605 + ... + 65949497914.

It is an arithmetic number, because the mean of its divisors is an integer number (3165575892480).

Almost surely, 2^{20444344305445} is an apocalyptic number.

It is an amenable number.

20444344305445 is a deficient number, since it is larger than the sum of its proper divisors (4880262834395).

20444344305445 is a wasteful number, since it uses less digits than its factorization.

20444344305445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131898995555.

The product of its (nonzero) digits is 7372800, while the sum is 46.

Adding to 20444344305445 its reverse (54450344344402), we get a palindrome (74894688649847).

The spelling of 20444344305445 in words is "twenty trillion, four hundred forty-four billion, three hundred forty-four million, three hundred five thousand, four hundred forty-five".