16919983111 has 2 divisors, whose sum is σ = 16919983112. Its totient is φ = 16919983110.

The previous prime is 16919983063. The next prime is 16919983121. The reversal of 16919983111 is 11138991961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16919983111 - 2⁷ = 16919982983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16919983121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8459991555 + 8459991556.

It is an arithmetic number, because the mean of its divisors is an integer number (8459991556).

Almost surely, 2^16919983111 is an apocalyptic number.

16919983111 is a deficient number, since it is larger than the sum of its proper divisors (1).

16919983111 is an equidigital number, since it uses as much as digits as its factorization.

16919983111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 49.

The spelling of 16919983111 in words is "sixteen billion, nine hundred nineteen million, nine hundred eighty-three thousand, one hundred eleven".