16956697857 has 8 divisors (see below), whose sum is σ = 24664287840. Its totient is φ = 10276786560.

The previous prime is 16956697841. The next prime is 16956697903. The reversal of 16956697857 is 75879665961.

16956697857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 16956697857 - 2⁴ = 16956697841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16956697791 and 16956697800.

It is not an unprimeable number, because it can be changed into a prime (16956699857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256919632 + ... + 256919697.

It is an arithmetic number, because the mean of its divisors is an integer number (3083035980).

Almost surely, 2^16956697857 is an apocalyptic number.

It is an amenable number.

16956697857 is a deficient number, since it is larger than the sum of its proper divisors (7707589983).

16956697857 is a wasteful number, since it uses less digits than its factorization.

16956697857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513839343.

The product of its digits is 171460800, while the sum is 69.

The spelling of 16956697857 in words is "sixteen billion, nine hundred fifty-six million, six hundred ninety-seven thousand, eight hundred fifty-seven".