16969969971 has 12 divisors (see below), whose sum is σ = 24519294072. Its totient is φ = 11310029376.

The previous prime is 16969969949. The next prime is 16969969981. The reversal of 16969969971 is 17996996961.

It is not a de Polignac number, because 16969969971 - 2¹⁵ = 16969937203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16969969971.

It is not an unprimeable number, because it can be changed into a prime (16969969981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240726 + ... + 303131.

It is an arithmetic number, because the mean of its divisors is an integer number (2043274506).

Almost surely, 2^16969969971 is an apocalyptic number.

16969969971 is a deficient number, since it is larger than the sum of its proper divisors (7549324101).

16969969971 is a wasteful number, since it uses less digits than its factorization.

16969969971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547330 (or 547327 counting only the distinct ones).

The product of its digits is 89282088, while the sum is 72.

The spelling of 16969969971 in words is "sixteen billion, nine hundred sixty-nine million, nine hundred sixty-nine thousand, nine hundred seventy-one".