9993716066 has 4 divisors (see below), whose sum is σ = 14990574102. Its totient is φ = 4996858032.

The previous prime is 9993716053. The next prime is 9993716113. The reversal of 9993716066 is 6606173999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6606173999 = 62303 ⋅106033.

It can be written as a sum of positive squares in only one way, i.e., 5810860441 + 4182855625 = 76229^2 + 64675^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2498429015 + ... + 2498429018.

Almost surely, 2^9993716066 is an apocalyptic number.

9993716066 is a deficient number, since it is larger than the sum of its proper divisors (4996858036).

9993716066 is a wasteful number, since it uses less digits than its factorization.

9993716066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4996858035.

The product of its (nonzero) digits is 3306744, while the sum is 56.

The square root of 9993716066 is about 99968.5753924702. The cubic root of 9993716066 is about 2153.9833179590.

The spelling of 9993716066 in words is "nine billion, nine hundred ninety-three million, seven hundred sixteen thousand, sixty-six".