196181966 has 8 divisors (see below), whose sum is σ = 301450464. Its totient is φ = 95698480.

The previous prime is 196181941. The next prime is 196181977. The reversal of 196181966 is 669181691.

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

It is a self number, because there is not a number n which added to its sum of digits gives 196181966.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1196150 + ... + 1196313.

It is an arithmetic number, because the mean of its divisors is an integer number (37681308).

Almost surely, 2^196181966 is an apocalyptic number.

196181966 is a deficient number, since it is larger than the sum of its proper divisors (105268498).

196181966 is a wasteful number, since it uses less digits than its factorization.

196181966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392506.

The product of its digits is 139968, while the sum is 47.

The square root of 196181966 is about 14006.4972780492. The cubic root of 196181966 is about 581.0582799155.

The spelling of 196181966 in words is "one hundred ninety-six million, one hundred eighty-one thousand, nine hundred sixty-six".