168240560 has 20 divisors (see below), whose sum is σ = 391159488. Its totient is φ = 67296192.

The previous prime is 168240559. The next prime is 168240563. The reversal of 168240560 is 65042861.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×168240560² = 56609772058227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168240563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051424 + ... + 1051583.

Almost surely, 2^168240560 is an apocalyptic number.

168240560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168240560 is an abundant number, since it is smaller than the sum of its proper divisors (222918928).

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

168240560 is a wasteful number, since it uses less digits than its factorization.

168240560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103020 (or 2103014 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 168240560 is about 12970.7578807100. The cubic root of 168240560 is about 552.0480774480.

The spelling of 168240560 in words is "one hundred sixty-eight million, two hundred forty thousand, five hundred sixty".