545220004441 has 8 divisors (see below), whose sum is σ = 637599473984. Its totient is φ = 456463259280.

The previous prime is 545220004421. The next prime is 545220004457. The reversal of 545220004441 is 144400022545.

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

It is a de Polignac number, because none of the positive numbers 2^k-545220004441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545220004421) 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, 905680770 + ... + 905681371.

It is an arithmetic number, because the mean of its divisors is an integer number (79699934248).

Almost surely, 2^545220004441 is an apocalyptic number.

It is an amenable number.

545220004441 is a deficient number, since it is larger than the sum of its proper divisors (92379469543).

545220004441 is a wasteful number, since it uses less digits than its factorization.

545220004441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811362191.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 545220004441 its reverse (144400022545), we get a palindrome (689620026986).

The spelling of 545220004441 in words is "five hundred forty-five billion, two hundred twenty million, four thousand, four hundred forty-one".