191366149198 has 8 divisors (see below), whose sum is σ = 328056255792. Its totient is φ = 82014063936.

The previous prime is 191366149171. The next prime is 191366149223. The reversal of 191366149198 is 891941663191.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6834505315 + ... + 6834505342.

It is an arithmetic number, because the mean of its divisors is an integer number (41007031974).

Almost surely, 2^191366149198 is an apocalyptic number.

191366149198 is a deficient number, since it is larger than the sum of its proper divisors (136690106594).

191366149198 is a wasteful number, since it uses less digits than its factorization.

191366149198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13669010666.

The product of its digits is 2519424, while the sum is 58.

The spelling of 191366149198 in words is "one hundred ninety-one billion, three hundred sixty-six million, one hundred forty-nine thousand, one hundred ninety-eight".