168988268 has 24 divisors (see below), whose sum is σ = 312506880. Its totient is φ = 79794000.

The previous prime is 168988247. The next prime is 168988301. The reversal of 168988268 is 862889861.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4358 + ... + 18893.

It is an arithmetic number, because the mean of its divisors is an integer number (13021120).

Almost surely, 2^168988268 is an apocalyptic number.

It is an amenable number.

168988268 is a deficient number, since it is larger than the sum of its proper divisors (143518612).

168988268 is a wasteful number, since it uses less digits than its factorization.

168988268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23357 (or 23355 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 56.

The square root of 168988268 is about 12999.5487613994. The cubic root of 168988268 is about 552.8646874651.

The spelling of 168988268 in words is "one hundred sixty-eight million, nine hundred eighty-eight thousand, two hundred sixty-eight".