500550116661 has 12 divisors (see below), whose sum is σ = 826304954592. Its totient is φ = 286028638056.

The previous prime is 500550116623. The next prime is 500550116669. The reversal of 500550116661 is 166611055005.

It is not a de Polignac number, because 500550116661 - 2⁶ = 500550116597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500550116669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3972619911 + ... + 3972620036.

It is an arithmetic number, because the mean of its divisors is an integer number (68858746216).

Almost surely, 2^500550116661 is an apocalyptic number.

It is an amenable number.

500550116661 is a deficient number, since it is larger than the sum of its proper divisors (325754837931).

500550116661 is a wasteful number, since it uses less digits than its factorization.

500550116661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945239960 (or 7945239957 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 500550116661 in words is "five hundred billion, five hundred fifty million, one hundred sixteen thousand, six hundred sixty-one".