11171995198 has 48 divisors (see below), whose sum is σ = 21048431040. Its totient is φ = 4408133184.

The previous prime is 11171995189. The next prime is 11171995207. The reversal of 11171995198 is 89159917111.

It is a happy number.

11171995198 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11171995189) and next prime (11171995207).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 484315 + ... + 506857.

It is an arithmetic number, because the mean of its divisors is an integer number (438508980).

Almost surely, 2^11171995198 is an apocalyptic number.

11171995198 is a deficient number, since it is larger than the sum of its proper divisors (9876435842).

11171995198 is a wasteful number, since it uses less digits than its factorization.

11171995198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22961 (or 22954 counting only the distinct ones).

The product of its digits is 204120, while the sum is 52.

The spelling of 11171995198 in words is "eleven billion, one hundred seventy-one million, nine hundred ninety-five thousand, one hundred ninety-eight".