196156646 has 16 divisors (see below), whose sum is σ = 353967360. Its totient is φ = 79642440.

The previous prime is 196156633. The next prime is 196156679. The reversal of 196156646 is 646651691.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 196156597 and 196156606.

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, 368450 + ... + 368981.

It is an arithmetic number, because the mean of its divisors is an integer number (22122960).

Almost surely, 2^196156646 is an apocalyptic number.

196156646 is a deficient number, since it is larger than the sum of its proper divisors (157810714).

196156646 is a wasteful number, since it uses less digits than its factorization.

196156646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737459.

The product of its digits is 233280, while the sum is 44.

The square root of 196156646 is about 14005.5933826454. The cubic root of 196156646 is about 581.0332809669.

The spelling of 196156646 in words is "one hundred ninety-six million, one hundred fifty-six thousand, six hundred forty-six".