505545055596 has 192 divisors, whose sum is σ = 1550208844800. Its totient is φ = 139402626048.

The previous prime is 505545055577. The next prime is 505545055619. The reversal of 505545055596 is 695550545505.

505545055596 is a `hidden beast` number, since 5 + 0 + 5 + 5 + 45 + 0 + 5 + 5 + 596 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104947780 + ... + 104952596.

It is an arithmetic number, because the mean of its divisors is an integer number (8074004400).

Almost surely, 2^505545055596 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 505545055596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (775104422400).

505545055596 is an abundant number, since it is smaller than the sum of its proper divisors (1044663789204).

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

505545055596 is a wasteful number, since it uses less digits than its factorization.

505545055596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9653 (or 9645 counting only the distinct ones).

The product of its (nonzero) digits is 16875000, while the sum is 54.

The spelling of 505545055596 in words is "five hundred five billion, five hundred forty-five million, fifty-five thousand, five hundred ninety-six".