505601105605 has 16 divisors (see below), whose sum is σ = 614460211200. Its totient is φ = 399322609920.

The previous prime is 505601105591. The next prime is 505601105623. The reversal of 505601105605 is 506501106505.

It is a de Polignac number, because none of the positive numbers 2^k-505601105605 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4494445 + ... + 4605565.

It is an arithmetic number, because the mean of its divisors is an integer number (38403763200).

Almost surely, 2^505601105605 is an apocalyptic number.

It is an amenable number.

505601105605 is a deficient number, since it is larger than the sum of its proper divisors (108859105595).

505601105605 is a wasteful number, since it uses less digits than its factorization.

505601105605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122724.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 505601105605 in words is "five hundred five billion, six hundred one million, one hundred five thousand, six hundred five".