9996680681 has 8 divisors (see below), whose sum is σ = 10766441280. Its totient is φ = 9227032272.

The previous prime is 9996680669. The next prime is 9996680699. The reversal of 9996680681 is 1860866999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9996680681 is a prime.

It is a super-2 number, since 2×9996680681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9996680641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294326 + ... + 326528.

It is an arithmetic number, because the mean of its divisors is an integer number (1345805160).

Almost surely, 2^9996680681 is an apocalyptic number.

It is an amenable number.

9996680681 is a deficient number, since it is larger than the sum of its proper divisors (769760599).

9996680681 is a wasteful number, since it uses less digits than its factorization.

9996680681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56095.

The product of its (nonzero) digits is 10077696, while the sum is 62.

The square root of 9996680681 is about 99983.4020275366. The cubic root of 9996680681 is about 2154.1962884522.

The spelling of 9996680681 in words is "nine billion, nine hundred ninety-six million, six hundred eighty thousand, six hundred eighty-one".