65133827191 has 4 divisors (see below), whose sum is σ = 65150061912. Its totient is φ = 65117592472.

The previous prime is 65133827179. The next prime is 65133827201. The reversal of 65133827191 is 19172833156.

It is a happy number.

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 65133827191 - 2¹³ = 65133818999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65133837191) 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, 8111341 + ... + 8119366.

It is an arithmetic number, because the mean of its divisors is an integer number (16287515478).

Almost surely, 2^65133827191 is an apocalyptic number.

65133827191 is a deficient number, since it is larger than the sum of its proper divisors (16234721).

65133827191 is a wasteful number, since it uses less digits than its factorization.

65133827191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16234720.

The product of its digits is 272160, while the sum is 46.

The spelling of 65133827191 in words is "sixty-five billion, one hundred thirty-three million, eight hundred twenty-seven thousand, one hundred ninety-one".