8241371666 has 16 divisors (see below), whose sum is σ = 13496898240. Its totient is φ = 3743017680.

The previous prime is 8241371659. The next prime is 8241371729. The reversal of 8241371666 is 6661731428.

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 7 ways as a sum of consecutive naturals, for example, 125366 + ... + 179441.

It is an arithmetic number, because the mean of its divisors is an integer number (843556140).

Almost surely, 2^8241371666 is an apocalyptic number.

8241371666 is a deficient number, since it is larger than the sum of its proper divisors (5255526574).

8241371666 is a wasteful number, since it uses less digits than its factorization.

8241371666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306049.

The product of its digits is 290304, while the sum is 44.

The square root of 8241371666 is about 90782.0007820934. Note that the first 3 decimals coincide. The cubic root of 8241371666 is about 2019.9153369411.

The spelling of 8241371666 in words is "eight billion, two hundred forty-one million, three hundred seventy-one thousand, six hundred sixty-six".