194998420111 has 12 divisors (see below), whose sum is σ = 214361364672. Its totient is φ = 177251228000.

The previous prime is 194998420093. The next prime is 194998420147. The reversal of 194998420111 is 111024899491.

It is not a de Polignac number, because 194998420111 - 2²¹ = 194996322959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194998420181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1040091 + ... + 1213171.

It is an arithmetic number, because the mean of its divisors is an integer number (17863447056).

Almost surely, 2^194998420111 is an apocalyptic number.

194998420111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

194998420111 is a deficient number, since it is larger than the sum of its proper divisors (19362944561).

194998420111 is a wasteful number, since it uses less digits than its factorization.

194998420111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182414 (or 182403 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 49.

The spelling of 194998420111 in words is "one hundred ninety-four billion, nine hundred ninety-eight million, four hundred twenty thousand, one hundred eleven".