196664488361 has 16 divisors (see below), whose sum is σ = 217457085888. Its totient is φ = 176364091200.

The previous prime is 196664488331. The next prime is 196664488369. The reversal of 196664488361 is 163884466691.

It is not a de Polignac number, because 196664488361 - 2⁶ = 196664488297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 196664488294 and 196664488303.

It is not an unprimeable number, because it can be changed into a prime (196664488369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440555 + ... + 766431.

It is an arithmetic number, because the mean of its divisors is an integer number (13591067868).

Almost surely, 2^196664488361 is an apocalyptic number.

196664488361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

196664488361 is a deficient number, since it is larger than the sum of its proper divisors (20792597527).

196664488361 is a wasteful number, since it uses less digits than its factorization.

196664488361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326632.

The product of its digits is 35831808, while the sum is 62.

The spelling of 196664488361 in words is "one hundred ninety-six billion, six hundred sixty-four million, four hundred eighty-eight thousand, three hundred sixty-one".