195995133993 has 8 divisors (see below), whose sum is σ = 276699012768. Its totient is φ = 122977338944.

The previous prime is 195995133989. The next prime is 195995134007. The reversal of 195995133993 is 399331599591.

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 195995133993 - 2² = 195995133989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195995123993) 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, 1921520871 + ... + 1921520972.

It is an arithmetic number, because the mean of its divisors is an integer number (34587376596).

Almost surely, 2^195995133993 is an apocalyptic number.

It is an amenable number.

195995133993 is a deficient number, since it is larger than the sum of its proper divisors (80703878775).

195995133993 is a wasteful number, since it uses less digits than its factorization.

195995133993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843041863.

The product of its digits is 39858075, while the sum is 66.

The spelling of 195995133993 in words is "one hundred ninety-five billion, nine hundred ninety-five million, one hundred thirty-three thousand, nine hundred ninety-three".