168075268 has 6 divisors (see below), whose sum is σ = 294131726. Its totient is φ = 84037632.

The previous prime is 168075253. The next prime is 168075269. The reversal of 168075268 is 862570861.

It can be written as a sum of positive squares in only one way, i.e., 122943744 + 45131524 = 11088^2 + 6718^2 .

It is not an unprimeable number, because it can be changed into a prime (168075269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21009405 + ... + 21009412.

Almost surely, 2^168075268 is an apocalyptic number.

It is an amenable number.

168075268 is a deficient number, since it is larger than the sum of its proper divisors (126056458).

168075268 is a wasteful number, since it uses less digits than its factorization.

168075268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42018821 (or 42018819 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 168075268 is about 12964.3845978126. The cubic root of 168075268 is about 551.8672272209.

The spelling of 168075268 in words is "one hundred sixty-eight million, seventy-five thousand, two hundred sixty-eight".