505353316645 has 32 divisors (see below), whose sum is σ = 643990314240. Its totient is φ = 379380464640.

The previous prime is 505353316619. The next prime is 505353316709. The reversal of 505353316645 is 546613353505.

It is not a de Polignac number, because 505353316645 - 2⁹ = 505353316133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505353316595 and 505353316604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42251176 + ... + 42263134.

It is an arithmetic number, because the mean of its divisors is an integer number (20124697320).

Almost surely, 2^505353316645 is an apocalyptic number.

It is an amenable number.

505353316645 is a deficient number, since it is larger than the sum of its proper divisors (138636997595).

505353316645 is a wasteful number, since it uses less digits than its factorization.

505353316645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13405.

The product of its (nonzero) digits is 2430000, while the sum is 46.

The spelling of 505353316645 in words is "five hundred five billion, three hundred fifty-three million, three hundred sixteen thousand, six hundred forty-five".