196209836565 has 32 divisors (see below), whose sum is σ = 323093612160. Its totient is φ = 101620759296.

The previous prime is 196209836551. The next prime is 196209836569. The reversal of 196209836565 is 565638902691.

It is not a de Polignac number, because 196209836565 - 2¹¹ = 196209834517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196209836499 and 196209836508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196209836569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 767610 + ... + 990779.

It is an arithmetic number, because the mean of its divisors is an integer number (10096675380).

Almost surely, 2^196209836565 is an apocalyptic number.

196209836565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

196209836565 is a deficient number, since it is larger than the sum of its proper divisors (126883775595).

196209836565 is a wasteful number, since it uses less digits than its factorization.

196209836565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758613.

The product of its (nonzero) digits is 20995200, while the sum is 60.

The spelling of 196209836565 in words is "one hundred ninety-six billion, two hundred nine million, eight hundred thirty-six thousand, five hundred sixty-five".