194115904156 has 12 divisors (see below), whose sum is σ = 348883990168. Its totient is φ = 94434764112.

The previous prime is 194115904153. The next prime is 194115904219. The reversal of 194115904156 is 651409511491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194115904153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655796826 + ... + 655797121.

Almost surely, 2^194115904156 is an apocalyptic number.

It is an amenable number.

194115904156 is a deficient number, since it is larger than the sum of its proper divisors (154768086012).

194115904156 is a wasteful number, since it uses less digits than its factorization.

194115904156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311593988 (or 1311593986 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 46.

The spelling of 194115904156 in words is "one hundred ninety-four billion, one hundred fifteen million, nine hundred four thousand, one hundred fifty-six".