168983111 has 16 divisors (see below), whose sum is σ = 195605280. Its totient is φ = 144276480.

The previous prime is 168983083. The next prime is 168983123. The reversal of 168983111 is 111389861.

It is a cyclic number.

It is not a de Polignac number, because 168983111 - 2¹⁰ = 168982087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168983141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150725 + ... + 151841.

It is an arithmetic number, because the mean of its divisors is an integer number (12225330).

Almost surely, 2^168983111 is an apocalyptic number.

168983111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

168983111 is a deficient number, since it is larger than the sum of its proper divisors (26622169).

168983111 is a wasteful number, since it uses less digits than its factorization.

168983111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954.

The product of its digits is 10368, while the sum is 38.

The square root of 168983111 is about 12999.3504068473. The cubic root of 168983111 is about 552.8590635003.

The spelling of 168983111 in words is "one hundred sixty-eight million, nine hundred eighty-three thousand, one hundred eleven".