199861160 has 32 divisors (see below), whose sum is σ = 451248840. Its totient is φ = 79666944.

The previous prime is 199861153. The next prime is 199861169. The reversal of 199861160 is 61168991.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 187087684 + 12773476 = 13678^2 + 3574^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (199861169) 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, 3194 + ... + 20246.

Almost surely, 2^199861160 is an apocalyptic number.

199861160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199861160 is an abundant number, since it is smaller than the sum of its proper divisors (251387680).

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

199861160 is a wasteful number, since it uses less digits than its factorization.

199861160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17357 (or 17353 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 199861160 is about 14137.2260362491. The cubic root of 199861160 is about 584.6681927757.

The spelling of 199861160 in words is "one hundred ninety-nine million, eight hundred sixty-one thousand, one hundred sixty".