16961639676868 has 96 divisors (see below), whose sum is σ = 32093041881600. Its totient is φ = 7814452985856.

The previous prime is 16961639676859. The next prime is 16961639676869. The reversal of 16961639676868 is 86867693616961.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16961639676791 and 16961639676800.

It is not an unprimeable number, because it can be changed into a prime (16961639676869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1174052421 + ... + 1174066867.

It is an arithmetic number, because the mean of its divisors is an integer number (334302519600).

Almost surely, 2^{16961639676868} is an apocalyptic number.

It is an amenable number.

16961639676868 is a deficient number, since it is larger than the sum of its proper divisors (15131402204732).

16961639676868 is a wasteful number, since it uses less digits than its factorization.

16961639676868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15709 (or 15707 counting only the distinct ones).

The product of its digits is 5079158784, while the sum is 82.

The spelling of 16961639676868 in words is "sixteen trillion, nine hundred sixty-one billion, six hundred thirty-nine million, six hundred seventy-six thousand, eight hundred sixty-eight".