161067198 has 8 divisors (see below), whose sum is σ = 322134408. Its totient is φ = 53689064.

The previous prime is 161067191. The next prime is 161067209. The reversal of 161067198 is 891760161.

It is a sphenic number, since it is the product of 3 distinct primes.

161067198 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161067191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13422261 + ... + 13422272.

It is an arithmetic number, because the mean of its divisors is an integer number (40266801).

Almost surely, 2^161067198 is an apocalyptic number.

161067198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161067198 is a wasteful number, since it uses less digits than its factorization.

161067198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26844538.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 161067198 is about 12691.2252363592. The cubic root of 161067198 is about 544.0878584128.

The spelling of 161067198 in words is "one hundred sixty-one million, sixty-seven thousand, one hundred ninety-eight".