168785072 has 20 divisors (see below), whose sum is σ = 333192960. Its totient is φ = 82799808.

The previous prime is 168785011. The next prime is 168785077. The reversal of 168785072 is 270587861.

It is not an unprimeable number, because it can be changed into a prime (168785077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98672 + ... + 100367.

It is an arithmetic number, because the mean of its divisors is an integer number (16659648).

Almost surely, 2^168785072 is an apocalyptic number.

It is an amenable number.

168785072 is a deficient number, since it is larger than the sum of its proper divisors (164407888).

168785072 is a wasteful number, since it uses less digits than its factorization.

168785072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199100 (or 199094 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 168785072 is about 12991.7309085433. The cubic root of 168785072 is about 552.6430055079.

The spelling of 168785072 in words is "one hundred sixty-eight million, seven hundred eighty-five thousand, seventy-two".