168512256 has 216 divisors, whose sum is σ = 543663120. Its totient is φ = 49766400.

The previous prime is 168512221. The next prime is 168512263. The reversal of 168512256 is 652215861.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 168512256.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1545930 + ... + 1546038.

Almost surely, 2^168512256 is an apocalyptic number.

168512256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168512256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271831560).

168512256 is an abundant number, since it is smaller than the sum of its proper divisors (375150864).

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

168512256 is a wasteful number, since it uses less digits than its factorization.

168512256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 186 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 168512256 is about 12981.2270606442. The cubic root of 168512256 is about 552.3450898258.

The spelling of 168512256 in words is "one hundred sixty-eight million, five hundred twelve thousand, two hundred fifty-six".