196805668 has 24 divisors (see below), whose sum is σ = 373155552. Its totient is φ = 90459264.

The previous prime is 196805657. The next prime is 196805683. The reversal of 196805668 is 866508691.

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, 30730 + ... + 36577.

It is an arithmetic number, because the mean of its divisors is an integer number (15548148).

Almost surely, 2^196805668 is an apocalyptic number.

It is an amenable number.

196805668 is a deficient number, since it is larger than the sum of its proper divisors (176349884).

196805668 is a wasteful number, since it uses less digits than its factorization.

196805668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67371 (or 67369 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 196805668 is about 14028.7443486579. The cubic root of 196805668 is about 581.6733956341.

The spelling of 196805668 in words is "one hundred ninety-six million, eight hundred five thousand, six hundred sixty-eight".