206181120 has 72 divisors (see below), whose sum is σ = 658503216. Its totient is φ = 54980608.

The previous prime is 206181113. The next prime is 206181121. The reversal of 206181120 is 21181602.

It is not an unprimeable number, because it can be changed into a prime (206181121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23007 + ... + 30686.

It is an arithmetic number, because the mean of its divisors is an integer number (9145878).

Almost surely, 2^206181120 is an apocalyptic number.

206181120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206181120 is an abundant number, since it is smaller than the sum of its proper divisors (452322096).

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

206181120 is an equidigital number, since it uses as much as digits as its factorization.

206181120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53717 (or 53703 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 206181120 is about 14359.0083223042. The cubic root of 206181120 is about 590.7670956787.

The spelling of 206181120 in words is "two hundred six million, one hundred eighty-one thousand, one hundred twenty".