168256208 has 20 divisors (see below), whose sum is σ = 345173220. Its totient is φ = 79179264.

The previous prime is 168256183. The next prime is 168256211. The reversal of 168256208 is 802652861.

168256208 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 87759424 + 80496784 = 9368^2 + 8972^2 .

It is a super-3 number, since 3×168256208³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309023 + ... + 309566.

It is an arithmetic number, because the mean of its divisors is an integer number (17258661).

Almost surely, 2^168256208 is an apocalyptic number.

It is an amenable number.

168256208 is an abundant number, since it is smaller than the sum of its proper divisors (176917012).

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

168256208 is a wasteful number, since it uses less digits than its factorization.

168256208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618614 (or 618608 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 168256208 is about 12971.3610696796. The cubic root of 168256208 is about 552.0651921884.

The spelling of 168256208 in words is "one hundred sixty-eight million, two hundred fifty-six thousand, two hundred eight".