206560120 has 64 divisors (see below), whose sum is σ = 503788320. Its totient is φ = 75769344.

The previous prime is 206560117. The next prime is 206560157. The reversal of 206560120 is 21065602.

It is a junction number, because it is equal to n+sod(n) for n = 206560091 and 206560100.

It is a congruent number.

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, 83542 + ... + 85978.

Almost surely, 2^206560120 is an apocalyptic number.

206560120 is a gapful number since it is divisible by the number (20) 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 206560120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251894160).

206560120 is an abundant number, since it is smaller than the sum of its proper divisors (297228200).

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

206560120 is a wasteful number, since it uses less digits than its factorization.

206560120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624 (or 2620 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 206560120 is about 14372.1995533043. The cubic root of 206560120 is about 591.1288547614.

The spelling of 206560120 in words is "two hundred six million, five hundred sixty thousand, one hundred twenty".