545221433344 has 96 divisors (see below), whose sum is σ = 1246360227840. Its totient is φ = 233583058944.

The previous prime is 545221433297. The next prime is 545221433387. The reversal of 545221433344 is 443334122545.

It is a super-2 number, since 2×545221433344² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 545221433297 and 545221433306.

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, 56866119 + ... + 56875705.

It is an arithmetic number, because the mean of its divisors is an integer number (12982919040).

Almost surely, 2^545221433344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545221433344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623180113920).

545221433344 is an abundant number, since it is smaller than the sum of its proper divisors (701138794496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545221433344 is an equidigital number, since it uses as much as digits as its factorization.

545221433344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13583 (or 13563 counting only the distinct ones).

The product of its digits is 691200, while the sum is 40.

Adding to 545221433344 its reverse (443334122545), we get a palindrome (988555555889).

The spelling of 545221433344 in words is "five hundred forty-five billion, two hundred twenty-one million, four hundred thirty-three thousand, three hundred forty-four".