163257960 has 64 divisors (see below), whose sum is σ = 497825280. Its totient is φ = 42819840.

The previous prime is 163257947. The next prime is 163257961. The reversal of 163257960 is 69752361.

It is not an unprimeable number, because it can be changed into a prime (163257961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3832 + ... + 18471.

It is an arithmetic number, because the mean of its divisors is an integer number (7778520).

Almost surely, 2^163257960 is an apocalyptic number.

163257960 is a gapful number since it is divisible by the number (10) 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 163257960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248912640).

163257960 is an abundant number, since it is smaller than the sum of its proper divisors (334567320).

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

163257960 is a wasteful number, since it uses less digits than its factorization.

163257960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22378 (or 22374 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 163257960 is about 12777.2438342547. The cubic root of 163257960 is about 546.5435690179.

The spelling of 163257960 in words is "one hundred sixty-three million, two hundred fifty-seven thousand, nine hundred sixty".