163493568 has 336 divisors, whose sum is σ = 585801216. Its totient is φ = 42577920.

The previous prime is 163493563. The next prime is 163493579. The reversal of 163493568 is 865394361.

163493568 is a `hidden beast` number, since 1 + 634 + 9 + 3 + 5 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is not an unprimeable number, because it can be changed into a prime (163493563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3802155 + ... + 3802197.

It is an arithmetic number, because the mean of its divisors is an integer number (1743456).

Almost surely, 2^163493568 is an apocalyptic number.

163493568 is a gapful number since it is divisible by the number (18) 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 163493568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292900608).

163493568 is an abundant number, since it is smaller than the sum of its proper divisors (422307648).

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

163493568 is a wasteful number, since it uses less digits than its factorization.

163493568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 119 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 163493568 is about 12786.4603389679. The cubic root of 163493568 is about 546.8063599642.

The spelling of 163493568 in words is "one hundred sixty-three million, four hundred ninety-three thousand, five hundred sixty-eight".