196818656 has 24 divisors (see below), whose sum is σ = 410281200. Its totient is φ = 92620288.

The previous prime is 196818649. The next prime is 196818773. The reversal of 196818656 is 656818691.

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, 180356 + ... + 181443.

It is an arithmetic number, because the mean of its divisors is an integer number (17095050).

Almost surely, 2^196818656 is an apocalyptic number.

196818656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

196818656 is an abundant number, since it is smaller than the sum of its proper divisors (213462544).

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

196818656 is a wasteful number, since it uses less digits than its factorization.

196818656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361826 (or 361818 counting only the distinct ones).

The product of its digits is 622080, while the sum is 50.

The square root of 196818656 is about 14029.2072477386. The cubic root of 196818656 is about 581.6861910106.

The spelling of 196818656 in words is "one hundred ninety-six million, eight hundred eighteen thousand, six hundred fifty-six".