198106560 has 140 divisors (see below), whose sum is σ = 704792088. Its totient is φ = 52821504.

The previous prime is 198106529. The next prime is 198106561. The reversal of 198106560 is 65601891.

198106560 is a `hidden beast` number, since 1 + 98 + 1 + 0 + 6 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198106561) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22099 + ... + 29741.

Almost surely, 2^198106560 is an apocalyptic number.

198106560 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 198106560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352396044).

198106560 is an abundant number, since it is smaller than the sum of its proper divisors (506685528).

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

198106560 is an equidigital number, since it uses as much as digits as its factorization.

198106560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7672 (or 7653 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 198106560 is about 14075.0332148809. The cubic root of 198106560 is about 582.9522089127.

The spelling of 198106560 in words is "one hundred ninety-eight million, one hundred six thousand, five hundred sixty".