163256408 has 16 divisors (see below), whose sum is σ = 349835280. Its totient is φ = 69967008.

The previous prime is 163256407. The next prime is 163256437. The reversal of 163256408 is 804652361.

163256408 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163256407) 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, 1457591 + ... + 1457702.

It is an arithmetic number, because the mean of its divisors is an integer number (21864705).

Almost surely, 2^163256408 is an apocalyptic number.

It is an amenable number.

163256408 is an abundant number, since it is smaller than the sum of its proper divisors (186578872).

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

163256408 is a wasteful number, since it uses less digits than its factorization.

163256408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915306 (or 2915302 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 163256408 is about 12777.1831011377. The cubic root of 163256408 is about 546.5418371201.

The spelling of 163256408 in words is "one hundred sixty-three million, two hundred fifty-six thousand, four hundred eight".