168863856 has 240 divisors, whose sum is σ = 555488256. Its totient is φ = 43241472.

The previous prime is 168863833. The next prime is 168863867. The reversal of 168863856 is 658368861.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 168863799 and 168863808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3592825 + ... + 3592871.

Almost surely, 2^168863856 is an apocalyptic number.

168863856 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 168863856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277744128).

168863856 is an abundant number, since it is smaller than the sum of its proper divisors (386624400).

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

168863856 is a wasteful number, since it uses less digits than its factorization.

168863856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 113 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The square root of 168863856 is about 12994.7626373089. The cubic root of 168863856 is about 552.7289780675.

The spelling of 168863856 in words is "one hundred sixty-eight million, eight hundred sixty-three thousand, eight hundred fifty-six".