195810636652 has 12 divisors (see below), whose sum is σ = 342756753640. Its totient is φ = 97880135616.

The previous prime is 195810636649. The next prime is 195810636719. The reversal of 195810636652 is 256636018591.

It is a self number, because there is not a number n which added to its sum of digits gives 195810636652.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6278178 + ... + 6309289.

Almost surely, 2^195810636652 is an apocalyptic number.

It is an amenable number.

195810636652 is a deficient number, since it is larger than the sum of its proper divisors (146946116988).

195810636652 is a wasteful number, since it uses less digits than its factorization.

195810636652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12591360 (or 12591358 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 195810636652 in words is "one hundred ninety-five billion, eight hundred ten million, six hundred thirty-six thousand, six hundred fifty-two".