545400554440 has 256 divisors, whose sum is σ = 1444588992000. Its totient is φ = 185239756800.

The previous prime is 545400554407. The next prime is 545400554497. The reversal of 545400554440 is 44455004545.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 545400554393 and 545400554402.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 929131827 + ... + 929132413.

It is an arithmetic number, because the mean of its divisors is an integer number (5642925750).

Almost surely, 2^545400554440 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 545400554440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722294496000).

545400554440 is an abundant number, since it is smaller than the sum of its proper divisors (899188437560).

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

545400554440 is a wasteful number, since it uses less digits than its factorization.

545400554440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 40.

Adding to 545400554440 its reverse (44455004545), we get a palindrome (589855558985).

The spelling of 545400554440 in words is "five hundred forty-five billion, four hundred million, five hundred fifty-four thousand, four hundred forty".