195443640233 has 8 divisors (see below), whose sum is σ = 198640925952. Its totient is φ = 192270485376.

The previous prime is 195443640157. The next prime is 195443640241. The reversal of 195443640233 is 332046344591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195443640233 - 2⁸ = 195443639977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195443643233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6016385 + ... + 6048782.

It is an arithmetic number, because the mean of its divisors is an integer number (24830115744).

Almost surely, 2^195443640233 is an apocalyptic number.

It is an amenable number.

195443640233 is a deficient number, since it is larger than the sum of its proper divisors (3197285719).

195443640233 is a wasteful number, since it uses less digits than its factorization.

195443640233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12065431.

The product of its (nonzero) digits is 933120, while the sum is 44.

The spelling of 195443640233 in words is "one hundred ninety-five billion, four hundred forty-three million, six hundred forty thousand, two hundred thirty-three".