9986882566 has 4 divisors (see below), whose sum is σ = 14980323852. Its totient is φ = 4993441282.

The previous prime is 9986882537. The next prime is 9986882573. The reversal of 9986882566 is 6652886899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6652886899 = 6653 ⋅999983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2496720640 + ... + 2496720643.

It is an arithmetic number, because the mean of its divisors is an integer number (3745080963).

Almost surely, 2^9986882566 is an apocalyptic number.

9986882566 is a deficient number, since it is larger than the sum of its proper divisors (4993441286).

9986882566 is a wasteful number, since it uses less digits than its factorization.

9986882566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993441285.

The product of its digits is 89579520, while the sum is 67.

The square root of 9986882566 is about 99934.3913074973. The cubic root of 9986882566 is about 2153.4922560060.

The spelling of 9986882566 in words is "nine billion, nine hundred eighty-six million, eight hundred eighty-two thousand, five hundred sixty-six".