50566566605 has 16 divisors (see below), whose sum is σ = 61090498560. Its totient is φ = 40179820608.

The previous prime is 50566566599. The next prime is 50566566637. The reversal of 50566566605 is 50666566505.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 50566566605 - 2¹⁸ = 50566304461 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, 1336691 + ... + 1373999.

It is an arithmetic number, because the mean of its divisors is an integer number (3818156160).

Almost surely, 2^50566566605 is an apocalyptic number.

It is an amenable number.

50566566605 is a deficient number, since it is larger than the sum of its proper divisors (10523931955).

50566566605 is a wasteful number, since it uses less digits than its factorization.

50566566605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39140.

The product of its (nonzero) digits is 4860000, while the sum is 50.

The spelling of 50566566605 in words is "fifty billion, five hundred sixty-six million, five hundred sixty-six thousand, six hundred five".