11955272195 has 4 divisors (see below), whose sum is σ = 14346326640. Its totient is φ = 9564217752.

The previous prime is 11955272191. The next prime is 11955272227. The reversal of 11955272195 is 59127255911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11955272195 - 2² = 11955272191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11955272191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1195527215 + ... + 1195527224.

It is an arithmetic number, because the mean of its divisors is an integer number (3586581660).

Almost surely, 2^11955272195 is an apocalyptic number.

11955272195 is a deficient number, since it is larger than the sum of its proper divisors (2391054445).

11955272195 is an equidigital number, since it uses as much as digits as its factorization.

11955272195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391054444.

The product of its digits is 283500, while the sum is 47.

The spelling of 11955272195 in words is "eleven billion, nine hundred fifty-five million, two hundred seventy-two thousand, one hundred ninety-five".