505611320463 has 12 divisors (see below), whose sum is σ = 739572115360. Its totient is φ = 332807450976.

The previous prime is 505611320449. The next prime is 505611320519. The reversal of 505611320463 is 364023116505.

505611320463 is a `hidden beast` number, since 5 + 0 + 5 + 61 + 132 + 0 + 463 = 666.

It is not a de Polignac number, because 505611320463 - 2¹⁶ = 505611254927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505611320363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355562806 + ... + 355564227.

Almost surely, 2^505611320463 is an apocalyptic number.

505611320463 is a deficient number, since it is larger than the sum of its proper divisors (233960794897).

505611320463 is a wasteful number, since it uses less digits than its factorization.

505611320463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711127118 (or 711127115 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 505611320463 its reverse (364023116505), we get a palindrome (869634436968).

The spelling of 505611320463 in words is "five hundred five billion, six hundred eleven million, three hundred twenty thousand, four hundred sixty-three".