6511112117 has 4 divisors (see below), whose sum is σ = 6511458240. Its totient is φ = 6510765996.

The previous prime is 6511112077. The next prime is 6511112119. The reversal of 6511112117 is 7112111156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6511112117 - 2¹⁰ = 6511111093 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 (6511112119) 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, 143117 + ... + 183042.

It is an arithmetic number, because the mean of its divisors is an integer number (1627864560).

Almost surely, 2^6511112117 is an apocalyptic number.

It is an amenable number.

6511112117 is a deficient number, since it is larger than the sum of its proper divisors (346123).

6511112117 is a wasteful number, since it uses less digits than its factorization.

6511112117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346122.

The product of its digits is 420, while the sum is 26.

The square root of 6511112117 is about 80691.4624790008. The cubic root of 6511112117 is about 1867.3184627126.

The spelling of 6511112117 in words is "six billion, five hundred eleven million, one hundred twelve thousand, one hundred seventeen".