108198199191 has 16 divisors (see below), whose sum is σ = 144454369248. Its totient is φ = 72037132800.

The previous prime is 108198199177. The next prime is 108198199237. The reversal of 108198199191 is 191991891801.

It is not a de Polignac number, because 108198199191 - 2²⁷ = 108063981463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108198199141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16589011 + ... + 16595531.

It is an arithmetic number, because the mean of its divisors is an integer number (9028398078).

Almost surely, 2^108198199191 is an apocalyptic number.

108198199191 is a deficient number, since it is larger than the sum of its proper divisors (36256170057).

108198199191 is a wasteful number, since it uses less digits than its factorization.

108198199191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12962.

The product of its (nonzero) digits is 419904, while the sum is 57.

The spelling of 108198199191 in words is "one hundred eight billion, one hundred ninety-eight million, one hundred ninety-nine thousand, one hundred ninety-one".