168078128 has 20 divisors (see below), whose sum is σ = 326078088. Its totient is φ = 83928960.

The previous prime is 168078107. The next prime is 168078137. The reversal of 168078128 is 821870861.

It is a super-2 number, since 2×168078128² = 56500514223968768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6500 + ... + 19452.

Almost surely, 2^168078128 is an apocalyptic number.

It is an amenable number.

168078128 is a deficient number, since it is larger than the sum of its proper divisors (157999960).

168078128 is a wasteful number, since it uses less digits than its factorization.

168078128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13772 (or 13766 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 41.

The square root of 168078128 is about 12964.4948995323. The cubic root of 168078128 is about 551.8703574283.

The spelling of 168078128 in words is "one hundred sixty-eight million, seventy-eight thousand, one hundred twenty-eight".