505660505606 has 16 divisors (see below), whose sum is σ = 776182387200. Its totient is φ = 246933835848.

The previous prime is 505660505569. The next prime is 505660505639. The reversal of 505660505606 is 606505066505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137335 + ... + 1518173.

It is an arithmetic number, because the mean of its divisors is an integer number (48511399200).

Almost surely, 2^505660505606 is an apocalyptic number.

505660505606 is a deficient number, since it is larger than the sum of its proper divisors (270521881594).

505660505606 is a wasteful number, since it uses less digits than its factorization.

505660505606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396323.

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 505660505606 in words is "five hundred five billion, six hundred sixty million, five hundred five thousand, six hundred six".