199168660 has 48 divisors (see below), whose sum is σ = 432472320. Its totient is φ = 77005440.

The previous prime is 199168649. The next prime is 199168663. The reversal of 199168660 is 66861991.

It is a self number, because there is not a number n which added to its sum of digits gives 199168660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199168663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70597 + ... + 73363.

It is an arithmetic number, because the mean of its divisors is an integer number (9009840).

Almost surely, 2^199168660 is an apocalyptic number.

199168660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199168660 is an abundant number, since it is smaller than the sum of its proper divisors (233303660).

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

199168660 is a wasteful number, since it uses less digits than its factorization.

199168660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896 (or 2894 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 199168660 is about 14112.7127087601. The cubic root of 199168660 is about 583.9921380377.

The spelling of 199168660 in words is "one hundred ninety-nine million, one hundred sixty-eight thousand, six hundred sixty".