500666011 has 4 divisors (see below), whose sum is σ = 500935192. Its totient is φ = 500396832.

The previous prime is 500665987. The next prime is 500666021. The reversal of 500666011 is 110666005.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 500666011 - 2¹¹ = 500663963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500666021) 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 3 ways as a sum of consecutive naturals, for example, 131781 + ... + 135526.

It is an arithmetic number, because the mean of its divisors is an integer number (125233798).

Almost surely, 2^500666011 is an apocalyptic number.

500666011 is a deficient number, since it is larger than the sum of its proper divisors (269181).

500666011 is a wasteful number, since it uses less digits than its factorization.

500666011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269180.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 500666011 is about 22375.5672777250. The cubic root of 500666011 is about 794.0527784817.

It can be divided in two parts, 5006 and 66011, that added together give a palindrome (71017).

The spelling of 500666011 in words is "five hundred million, six hundred sixty-six thousand, eleven".