8113598666 has 4 divisors (see below), whose sum is σ = 12170398002. Its totient is φ = 4056799332.

The previous prime is 8113598621. The next prime is 8113598737. The reversal of 8113598666 is 6668953118.

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

It can be written as a sum of positive squares in only one way, i.e., 4752034225 + 3361564441 = 68935^2 + 57979^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2028399665 + ... + 2028399668.

Almost surely, 2^8113598666 is an apocalyptic number.

8113598666 is a deficient number, since it is larger than the sum of its proper divisors (4056799336).

8113598666 is a wasteful number, since it uses less digits than its factorization.

8113598666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056799335.

The product of its digits is 1866240, while the sum is 53.

The square root of 8113598666 is about 90075.5164625771. The cubic root of 8113598666 is about 2009.4220978316.

The spelling of 8113598666 in words is "eight billion, one hundred thirteen million, five hundred ninety-eight thousand, six hundred sixty-six".