196720645848 has 32 divisors (see below), whose sum is σ = 492005741760. Its totient is φ = 65546331680.

The previous prime is 196720645799. The next prime is 196720645931. The reversal of 196720645848 is 848546027691.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 196720645791 and 196720645800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1641990 + ... + 1757717.

It is an arithmetic number, because the mean of its divisors is an integer number (15375179430).

Almost surely, 2^196720645848 is an apocalyptic number.

It is an amenable number.

196720645848 is an abundant number, since it is smaller than the sum of its proper divisors (295285095912).

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

196720645848 is a wasteful number, since it uses less digits than its factorization.

196720645848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402127 (or 3402123 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 196720645848 in words is "one hundred ninety-six billion, seven hundred twenty million, six hundred forty-five thousand, eight hundred forty-eight".