505351405660 has 48 divisors (see below), whose sum is σ = 1099572989760. Its totient is φ = 194860753920.

The previous prime is 505351405577. The next prime is 505351405673. The reversal of 505351405660 is 66504153505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324429 + ... + 1056388.

It is an arithmetic number, because the mean of its divisors is an integer number (22907770620).

Almost surely, 2^505351405660 is an apocalyptic number.

It is an amenable number.

505351405660 is an abundant number, since it is smaller than the sum of its proper divisors (594221584100).

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

505351405660 is a wasteful number, since it uses less digits than its factorization.

505351405660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381486 (or 1381484 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 505351405660 in words is "five hundred five billion, three hundred fifty-one million, four hundred five thousand, six hundred sixty".