196658806491792 has 160 divisors (see below), whose sum is σ = 598530455587200. Its totient is φ = 61649475674112.

The previous prime is 196658806491743. The next prime is 196658806491821. The reversal of 196658806491792 is 297194608856691.

196658806491792 is a `hidden beast` number, since 1 + 9 + 6 + 6 + 58 + 8 + 0 + 6 + 491 + 79 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86318593 + ... + 88567584.

It is an arithmetic number, because the mean of its divisors is an integer number (3740815347420).

Almost surely, 2^{196658806491792} is an apocalyptic number.

196658806491792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

196658806491792 is an abundant number, since it is smaller than the sum of its proper divisors (401871649095408).

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

196658806491792 is a wasteful number, since it uses less digits than its factorization.

196658806491792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174886350 (or 174886338 counting only the distinct ones).

The product of its (nonzero) digits is 2821754880, while the sum is 81.

The spelling of 196658806491792 in words is "one hundred ninety-six trillion, six hundred fifty-eight billion, eight hundred six million, four hundred ninety-one thousand, seven hundred ninety-two".