163281160 has 32 divisors (see below), whose sum is σ = 419866560. Its totient is φ = 55982016.

The previous prime is 163281137. The next prime is 163281161. The reversal of 163281160 is 61182361.

163281160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (163281161) 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, 291294 + ... + 291853.

It is an arithmetic number, because the mean of its divisors is an integer number (13120830).

Almost surely, 2^163281160 is an apocalyptic number.

163281160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163281160 is an abundant number, since it is smaller than the sum of its proper divisors (256585400).

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

163281160 is a wasteful number, since it uses less digits than its factorization.

163281160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583165 (or 583161 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 163281160 is about 12778.1516660274. The cubic root of 163281160 is about 546.5694569036.

The spelling of 163281160 in words is "one hundred sixty-three million, two hundred eighty-one thousand, one hundred sixty".