505363040256 has 96 divisors (see below), whose sum is σ = 1349805038400. Its totient is φ = 168141864960.

The previous prime is 505363040243. The next prime is 505363040261. The reversal of 505363040256 is 652040363505.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3247885 + ... + 3399923.

It is an arithmetic number, because the mean of its divisors is an integer number (14060469150).

Almost surely, 2^505363040256 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 505363040256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674902519200).

505363040256 is an abundant number, since it is smaller than the sum of its proper divisors (844441998144).

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

505363040256 is a wasteful number, since it uses less digits than its factorization.

505363040256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152605 (or 152585 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 39.

The spelling of 505363040256 in words is "five hundred five billion, three hundred sixty-three million, forty thousand, two hundred fifty-six".