168808911 has 8 divisors (see below), whose sum is σ = 231161904. Its totient is φ = 109497600.

The previous prime is 168808903. The next prime is 168808921. The reversal of 168808911 is 119808861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 168808911 - 2³ = 168808903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168808921) 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, 760290 + ... + 760511.

It is an arithmetic number, because the mean of its divisors is an integer number (28895238).

Almost surely, 2^168808911 is an apocalyptic number.

168808911 is a deficient number, since it is larger than the sum of its proper divisors (62352993).

168808911 is a wasteful number, since it uses less digits than its factorization.

168808911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520841.

The product of its (nonzero) digits is 27648, while the sum is 42.

The square root of 168808911 is about 12992.6483443523. The cubic root of 168808911 is about 552.6690224936.

Subtracting from 168808911 its reverse (119808861), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 168808911 in words is "one hundred sixty-eight million, eight hundred eight thousand, nine hundred eleven".