505556312316 has 96 divisors (see below), whose sum is σ = 1355093349120. Its totient is φ = 145082995200.

The previous prime is 505556312299. The next prime is 505556312333. The reversal of 505556312316 is 613213655505.

It is an interprime number because it is at equal distance from previous prime (505556312299) and next prime (505556312333).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7140160 + ... + 7210616.

It is an arithmetic number, because the mean of its divisors is an integer number (14115555720).

Almost surely, 2^505556312316 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 505556312316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (677546674560).

505556312316 is an abundant number, since it is smaller than the sum of its proper divisors (849537036804).

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

505556312316 is a wasteful number, since it uses less digits than its factorization.

505556312316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73355 (or 73353 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 42.

The spelling of 505556312316 in words is "five hundred five billion, five hundred fifty-six million, three hundred twelve thousand, three hundred sixteen".