163868111 has 8 divisors (see below), whose sum is σ = 179480448. Its totient is φ = 148375000.

The previous prime is 163868099. The next prime is 163868113. The reversal of 163868111 is 111868361.

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 163868111 - 2¹⁰ = 163867087 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 (163868113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26915 + ... + 32436.

It is an arithmetic number, because the mean of its divisors is an integer number (22435056).

Almost surely, 2^163868111 is an apocalyptic number.

163868111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

163868111 is a deficient number, since it is larger than the sum of its proper divisors (15612337).

163868111 is a wasteful number, since it uses less digits than its factorization.

163868111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59613.

The product of its digits is 6912, while the sum is 35.

The square root of 163868111 is about 12801.0980388403. The cubic root of 163868111 is about 547.2235961559.

The spelling of 163868111 in words is "one hundred sixty-three million, eight hundred sixty-eight thousand, one hundred eleven".