9934971616 has 48 divisors (see below), whose sum is σ = 19778574816. Its totient is φ = 4912155136.

The previous prime is 9934971587. The next prime is 9934971619. The reversal of 9934971616 is 6161794399.

It is a happy number.

It is a super-2 number, since 2×9934971616² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9934971619) 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 7 ways as a sum of consecutive naturals, for example, 1048050 + ... + 1057486.

It is an arithmetic number, because the mean of its divisors is an integer number (412053642).

Almost surely, 2^9934971616 is an apocalyptic number.

It is an amenable number.

9934971616 is a deficient number, since it is larger than the sum of its proper divisors (9843603200).

9934971616 is a wasteful number, since it uses less digits than its factorization.

9934971616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9811 (or 9803 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 55.

The square root of 9934971616 is about 99674.3277679865. The cubic root of 9934971616 is about 2149.7545503826.

The spelling of 9934971616 in words is "nine billion, nine hundred thirty-four million, nine hundred seventy-one thousand, six hundred sixteen".