11668854198 has 32 divisors (see below), whose sum is σ = 23399629056. Its totient is φ = 3879314208.

The previous prime is 11668854191. The next prime is 11668854203. The reversal of 11668854198 is 89145886611.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11668854191) 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, 6543615 + ... + 6545397.

It is an arithmetic number, because the mean of its divisors is an integer number (731238408).

Almost surely, 2^11668854198 is an apocalyptic number.

11668854198 is an abundant number, since it is smaller than the sum of its proper divisors (11730774858).

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

11668854198 is a wasteful number, since it uses less digits than its factorization.

11668854198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068.

The product of its digits is 3317760, while the sum is 57.

The spelling of 11668854198 in words is "eleven billion, six hundred sixty-eight million, eight hundred fifty-four thousand, one hundred ninety-eight".