198010668 has 12 divisors (see below), whose sum is σ = 462024920. Its totient is φ = 66003552.

The previous prime is 198010651. The next prime is 198010699. The reversal of 198010668 is 866010891.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×198010668³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8250433 + ... + 8250456.

Almost surely, 2^198010668 is an apocalyptic number.

It is an amenable number.

198010668 is an abundant number, since it is smaller than the sum of its proper divisors (264014252).

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

198010668 is a wasteful number, since it uses less digits than its factorization.

198010668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16500896 (or 16500894 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 198010668 is about 14071.6263452381. The cubic root of 198010668 is about 582.8581358458.

The spelling of 198010668 in words is "one hundred ninety-eight million, ten thousand, six hundred sixty-eight".