163240560 has 240 divisors, whose sum is σ = 640286400. Its totient is φ = 37255680.

The previous prime is 163240529. The next prime is 163240607. The reversal of 163240560 is 65042361.

163240560 is a `hidden beast` number, since 1 + 63 + 2 + 40 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×163240560² = 53294960858227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 246630 + ... + 247290.

It is an arithmetic number, because the mean of its divisors is an integer number (2667860).

Almost surely, 2^163240560 is an apocalyptic number.

163240560 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 163240560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320143200).

163240560 is an abundant number, since it is smaller than the sum of its proper divisors (477045840).

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

163240560 is a wasteful number, since it uses less digits than its factorization.

163240560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 163240560 is about 12776.5629180934. The cubic root of 163240560 is about 546.5241514941.

The spelling of 163240560 in words is "one hundred sixty-three million, two hundred forty thousand, five hundred sixty".