168081456 has 40 divisors (see below), whose sum is σ = 434694400. Its totient is φ = 55964736.

The previous prime is 168081451. The next prime is 168081457. The reversal of 168081456 is 654180861.

It is not an unprimeable number, because it can be changed into a prime (168081451) 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, 65901 + ... + 68403.

It is an arithmetic number, because the mean of its divisors is an integer number (10867360).

Almost surely, 2^168081456 is an apocalyptic number.

168081456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

168081456 is an abundant number, since it is smaller than the sum of its proper divisors (266612944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168081456 is a wasteful number, since it uses less digits than its factorization.

168081456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913 (or 3907 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 168081456 is about 12964.6232494431. The cubic root of 168081456 is about 551.8739998067.

The spelling of 168081456 in words is "one hundred sixty-eight million, eighty-one thousand, four hundred fifty-six".