16971820322 has 6 divisors (see below), whose sum is σ = 25458006843. Its totient is φ = 8485818042.

The previous prime is 16971820291. The next prime is 16971820403. The reversal of 16971820322 is 22302817961.

It can be written as a sum of positive squares in only one way, i.e., 8485910161 + 8485910161 = 92119^2 + 92119^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=92119.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16971820322.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 138179 + ... + 230297.

Almost surely, 2^16971820322 is an apocalyptic number.

16971820322 is a deficient number, since it is larger than the sum of its proper divisors (8486186521).

16971820322 is an frugal number, since it uses more digits than its factorization.

16971820322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184240 (or 92121 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 16971820322 in words is "sixteen billion, nine hundred seventy-one million, eight hundred twenty thousand, three hundred twenty-two".