163936256 has 96 divisors (see below), whose sum is σ = 377395200. Its totient is φ = 70410240.

The previous prime is 163936247. The next prime is 163936259. The reversal of 163936256 is 652639361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163936259) 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, 427841 + ... + 428223.

It is an arithmetic number, because the mean of its divisors is an integer number (3931200).

Almost surely, 2^163936256 is an apocalyptic number.

163936256 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 163936256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188697600).

163936256 is an abundant number, since it is smaller than the sum of its proper divisors (213458944).

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

163936256 is a wasteful number, since it uses less digits than its factorization.

163936256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 415 counting only the distinct ones).

The product of its digits is 174960, while the sum is 41.

The square root of 163936256 is about 12803.7594479122. The cubic root of 163936256 is about 547.2994404508.

It can be divided in two parts, 16 and 3936256, that multiplied together give a square (62980096 = 7936²).

The spelling of 163936256 in words is "one hundred sixty-three million, nine hundred thirty-six thousand, two hundred fifty-six".