50666866605 has 16 divisors (see below), whose sum is σ = 90074429760. Its totient is φ = 27022328784.

The previous prime is 50666866597. The next prime is 50666866639.

50666866605 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 50666866605 - 2³ = 50666866597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187654927 + ... + 187655196.

It is an arithmetic number, because the mean of its divisors is an integer number (5629651860).

Almost surely, 2^50666866605 is an apocalyptic number.

It is an amenable number.

50666866605 is a deficient number, since it is larger than the sum of its proper divisors (39407563155).

50666866605 is a wasteful number, since it uses less digits than its factorization.

50666866605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375310137 (or 375310131 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 50666866605 in words is "fifty billion, six hundred sixty-six million, eight hundred sixty-six thousand, six hundred five".