4561766636 has 12 divisors (see below), whose sum is σ = 9123533328. Its totient is φ = 1955042832.

The previous prime is 4561766609. The next prime is 4561766647. The reversal of 4561766636 is 6366671654.

It is a happy number.

4561766636 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81460091 + ... + 81460146.

It is an arithmetic number, because the mean of its divisors is an integer number (760294444).

Almost surely, 2^4561766636 is an apocalyptic number.

It is an amenable number.

4561766636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4561766636 is a wasteful number, since it uses less digits than its factorization.

4561766636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162920248 (or 162920246 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 50.

The square root of 4561766636 is about 67540.8516084895. The cubic root of 4561766636 is about 1658.4829896593.

The spelling of 4561766636 in words is "four billion, five hundred sixty-one million, seven hundred sixty-six thousand, six hundred thirty-six".