505016660 has 24 divisors (see below), whose sum is σ = 1094747136. Its totient is φ = 195490080.

The previous prime is 505016657. The next prime is 505016669. The reversal of 505016660 is 66610505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505016669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406652 + ... + 407891.

It is an arithmetic number, because the mean of its divisors is an integer number (45614464).

Almost surely, 2^505016660 is an apocalyptic number.

It is an amenable number.

505016660 is an abundant number, since it is smaller than the sum of its proper divisors (589730476).

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

505016660 is a wasteful number, since it uses less digits than its factorization.

505016660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814583 (or 814581 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 505016660 is about 22472.5757313219. The cubic root of 505016660 is about 796.3461811661.

The spelling of 505016660 in words is "five hundred five million, sixteen thousand, six hundred sixty".