163568040 has 64 divisors (see below), whose sum is σ = 493603200. Its totient is φ = 43360512.

The previous prime is 163568003. The next prime is 163568051. The reversal of 163568040 is 40865361.

It is a junction number, because it is equal to n+sod(n) for n = 163567992 and 163568010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16821 + ... + 24699.

It is an arithmetic number, because the mean of its divisors is an integer number (7712550).

Almost surely, 2^163568040 is an apocalyptic number.

163568040 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 163568040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246801600).

163568040 is an abundant number, since it is smaller than the sum of its proper divisors (330035160).

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

163568040 is a wasteful number, since it uses less digits than its factorization.

163568040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8066 (or 8062 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 163568040 is about 12789.3721503442. The cubic root of 163568040 is about 546.8893715516.

The spelling of 163568040 in words is "one hundred sixty-three million, five hundred sixty-eight thousand, forty".