545332542444 has 240 divisors, whose sum is σ = 1471223875968. Its totient is φ = 176053519872.

The previous prime is 545332542379. The next prime is 545332542449. The reversal of 545332542444 is 444245233545.

545332542444 is a `hidden beast` number, since 5 + 4 + 533 + 2 + 54 + 24 + 44 = 666.

It is a super-2 number, since 2×545332542444² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 545332542444.

It is not an unprimeable number, because it can be changed into a prime (545332542449) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 835118422 + ... + 835119074.

Almost surely, 2^545332542444 is an apocalyptic number.

545332542444 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545332542444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735611937984).

545332542444 is an abundant number, since it is smaller than the sum of its proper divisors (925891333524).

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

545332542444 is a wasteful number, since it uses less digits than its factorization.

545332542444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206 (or 1195 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 45.

Adding to 545332542444 its reverse (444245233545), we get a palindrome (989577775989).

The spelling of 545332542444 in words is "five hundred forty-five billion, three hundred thirty-two million, five hundred forty-two thousand, four hundred forty-four".