9965995699 has 4 divisors (see below), whose sum is σ = 10871995320. Its totient is φ = 9059996080.

The previous prime is 9965995649. The next prime is 9965995709.

It is a happy number.

9965995699 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 9965995699 - 2¹¹ = 9965993651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9965995649) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 452999794 + ... + 452999815.

It is an arithmetic number, because the mean of its divisors is an integer number (2717998830).

Almost surely, 2^9965995699 is an apocalyptic number.

9965995699 is a deficient number, since it is larger than the sum of its proper divisors (905999621).

9965995699 is a wasteful number, since it uses less digits than its factorization.

9965995699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905999620.

The product of its digits is 478296900, while the sum is 76.

The square root of 9965995699 is about 99829.8337121724. The cubic root of 9965995699 is about 2151.9899153163.

The spelling of 9965995699 in words is "nine billion, nine hundred sixty-five million, nine hundred ninety-five thousand, six hundred ninety-nine".