16969681697 has 8 divisors (see below), whose sum is σ = 17589783552. Its totient is φ = 16354123200.

The previous prime is 16969681661. The next prime is 16969681721. The reversal of 16969681697 is 79618696961.

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

It is a cyclic number.

It is not a de Polignac number, because 16969681697 - 2⁶ = 16969681633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16969681297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128233 + ... + 1143174.

It is an arithmetic number, because the mean of its divisors is an integer number (2198722944).

Almost surely, 2^16969681697 is an apocalyptic number.

It is an amenable number.

16969681697 is a deficient number, since it is larger than the sum of its proper divisors (620101855).

16969681697 is a wasteful number, since it uses less digits than its factorization.

16969681697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271679.

The product of its digits is 52907904, while the sum is 68.

The spelling of 16969681697 in words is "sixteen billion, nine hundred sixty-nine million, six hundred eighty-one thousand, six hundred ninety-seven".