196143161808 has 80 divisors (see below), whose sum is σ = 570598336512. Its totient is φ = 57519984000.

The previous prime is 196143161783. The next prime is 196143161831. The reversal of 196143161808 is 808161341691.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5975298 + ... + 6008033.

Almost surely, 2^196143161808 is an apocalyptic number.

It is an amenable number.

196143161808 is an abundant number, since it is smaller than the sum of its proper divisors (374455174704).

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

196143161808 is a wasteful number, since it uses less digits than its factorization.

196143161808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11983384 (or 11983378 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 48.

The spelling of 196143161808 in words is "one hundred ninety-six billion, one hundred forty-three million, one hundred sixty-one thousand, eight hundred eight".