196787166 has 16 divisors (see below), whose sum is σ = 393724800. Its totient is φ = 65570648.

The previous prime is 196787153. The next prime is 196787179. The reversal of 196787166 is 661787691.

It is an interprime number because it is at equal distance from previous prime (196787153) and next prime (196787179).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17905 + ... + 26723.

It is an arithmetic number, because the mean of its divisors is an integer number (24607800).

Almost surely, 2^196787166 is an apocalyptic number.

196787166 is an abundant number, since it is smaller than the sum of its proper divisors (196937634).

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

196787166 is a wasteful number, since it uses less digits than its factorization.

196787166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12543.

The product of its digits is 762048, while the sum is 51.

The square root of 196787166 is about 14028.0849013684. The cubic root of 196787166 is about 581.6551670628.

The spelling of 196787166 in words is "one hundred ninety-six million, seven hundred eighty-seven thousand, one hundred sixty-six".