198955986167 has 8 divisors (see below), whose sum is σ = 209432367360. Its totient is φ = 188480106360.

The previous prime is 198955986161. The next prime is 198955986169. The reversal of 198955986167 is 761689559891.

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

It is a cyclic number.

It is not a de Polignac number, because 198955986167 - 2¹⁰ = 198955985143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198955986094 and 198955986103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198955986161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907442 + ... + 1105152.

It is an arithmetic number, because the mean of its divisors is an integer number (26179045920).

Almost surely, 2^198955986167 is an apocalyptic number.

198955986167 is a deficient number, since it is larger than the sum of its proper divisors (10476381193).

198955986167 is a wasteful number, since it uses less digits than its factorization.

198955986167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250693.

The product of its digits is 293932800, while the sum is 74.

The spelling of 198955986167 in words is "one hundred ninety-eight billion, nine hundred fifty-five million, nine hundred eighty-six thousand, one hundred sixty-seven".