163163520 has 192 divisors, whose sum is σ = 607042800. Its totient is φ = 40144896.

The previous prime is 163163479. The next prime is 163163527. The reversal of 163163520 is 25361361.

163163520 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 635 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163163527) 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 23 ways as a sum of consecutive naturals, for example, 73791 + ... + 75969.

Almost surely, 2^163163520 is an apocalyptic number.

163163520 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 163163520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303521400).

163163520 is an abundant number, since it is smaller than the sum of its proper divisors (443879280).

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

163163520 is a wasteful number, since it uses less digits than its factorization.

163163520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217 (or 2202 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 163163520 is about 12773.5476669561. The cubic root of 163163520 is about 546.4381621502.

The spelling of 163163520 in words is "one hundred sixty-three million, one hundred sixty-three thousand, five hundred twenty".