196606566 has 48 divisors (see below), whose sum is σ = 482904240. Its totient is φ = 57309120.

The previous prime is 196606561. The next prime is 196606577. The reversal of 196606566 is 665606691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196606561) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 17665 + ... + 26556.

It is an arithmetic number, because the mean of its divisors is an integer number (10060505).

Almost surely, 2^196606566 is an apocalyptic number.

196606566 is an abundant number, since it is smaller than the sum of its proper divisors (286297674).

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

196606566 is a wasteful number, since it uses less digits than its factorization.

196606566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44261 (or 44258 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 196606566 is about 14021.6463370034. The cubic root of 196606566 is about 581.4771759925.

The spelling of 196606566 in words is "one hundred ninety-six million, six hundred six thousand, five hundred sixty-six".