198400166 has 16 divisors (see below), whose sum is σ = 331691760. Its totient is φ = 88450560.

The previous prime is 198400159. The next prime is 198400171. The reversal of 198400166 is 661004891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152915 + ... + 154206.

It is an arithmetic number, because the mean of its divisors is an integer number (20730735).

Almost surely, 2^198400166 is an apocalyptic number.

198400166 is a deficient number, since it is larger than the sum of its proper divisors (133291594).

198400166 is a wasteful number, since it uses less digits than its factorization.

198400166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307159.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 198400166 is about 14085.4593819300. The cubic root of 198400166 is about 583.2400569950.

The spelling of 198400166 in words is "one hundred ninety-eight million, four hundred thousand, one hundred sixty-six".