505353313656 has 48 divisors (see below), whose sum is σ = 1440700240200. Its totient is φ = 159585256512.

The previous prime is 505353313631. The next prime is 505353313681. The reversal of 505353313656 is 656313353505.

505353313656 is a `hidden beast` number, since 5 + 0 + 53 + 533 + 1 + 3 + 65 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (505353313631) and next prime (505353313681).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 184703791 + ... + 184706526.

Almost surely, 2^505353313656 is an apocalyptic number.

It is an amenable number.

505353313656 is an abundant number, since it is smaller than the sum of its proper divisors (935346926544).

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

505353313656 is a wasteful number, since it uses less digits than its factorization.

505353313656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369410348 (or 369410341 counting only the distinct ones).

The product of its (nonzero) digits is 1822500, while the sum is 45.

The spelling of 505353313656 in words is "five hundred five billion, three hundred fifty-three million, three hundred thirteen thousand, six hundred fifty-six".