196997392358320 has 80 divisors (see below), whose sum is σ = 459440176446720. Its totient is φ = 78554581684992.

The previous prime is 196997392358309. The next prime is 196997392358341. The reversal of 196997392358320 is 23853293799691.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89757067 + ... + 91925653.

It is an arithmetic number, because the mean of its divisors is an integer number (5743002205584).

Almost surely, 2^{196997392358320} is an apocalyptic number.

196997392358320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196997392358320 is an abundant number, since it is smaller than the sum of its proper divisors (262442784088400).

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

196997392358320 is a wasteful number, since it uses less digits than its factorization.

196997392358320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172122 (or 2172116 counting only the distinct ones).

The product of its (nonzero) digits is 1190427840, while the sum is 76.

The spelling of 196997392358320 in words is "one hundred ninety-six trillion, nine hundred ninety-seven billion, three hundred ninety-two million, three hundred fifty-eight thousand, three hundred twenty".