198400164 has 12 divisors (see below), whose sum is σ = 462933744. Its totient is φ = 66133384.

The previous prime is 198400159. The next prime is 198400171. The reversal of 198400164 is 461004891.

198400164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 8266662 + ... + 8266685.

It is an arithmetic number, because the mean of its divisors is an integer number (38577812).

Almost surely, 2^198400164 is an apocalyptic number.

It is an amenable number.

198400164 is an abundant number, since it is smaller than the sum of its proper divisors (264533580).

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

198400164 is a wasteful number, since it uses less digits than its factorization.

198400164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16533354 (or 16533352 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 198400164 is about 14085.4593109348. The cubic root of 198400164 is about 583.2400550352.

The spelling of 198400164 in words is "one hundred ninety-eight million, four hundred thousand, one hundred sixty-four".