545510500506 has 144 divisors (see below), whose sum is σ = 1306724927040. Its totient is φ = 163977488640.

The previous prime is 545510500501. The next prime is 545510500543. The reversal of 545510500506 is 605005015545.

545510500506 is a `hidden beast` number, since 5 + 4 + 551 + 0 + 50 + 0 + 50 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (545510500501) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 20407806 + ... + 20434518.

It is an arithmetic number, because the mean of its divisors is an integer number (9074478660).

Almost surely, 2^545510500506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545510500506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653362463520).

545510500506 is an abundant number, since it is smaller than the sum of its proper divisors (761214426534).

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

545510500506 is a wasteful number, since it uses less digits than its factorization.

545510500506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26869 (or 26837 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 545510500506 in words is "five hundred forty-five billion, five hundred ten million, five hundred thousand, five hundred six".