6115165516111 has 4 divisors (see below), whose sum is σ = 6124675883032. Its totient is φ = 6105655149192.

The previous prime is 6115165516079. The next prime is 6115165516127. The reversal of 6115165516111 is 1116155615116.

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 6115165516111 - 2⁵ = 6115165516079 is a prime.

It is a super-2 number, since 2×6115165516111² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6115165516171) 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, 4755182496 + ... + 4755183781.

It is an arithmetic number, because the mean of its divisors is an integer number (1531168970758).

Almost surely, 2^{6115165516111} is an apocalyptic number.

6115165516111 is a deficient number, since it is larger than the sum of its proper divisors (9510366921).

6115165516111 is an equidigital number, since it uses as much as digits as its factorization.

6115165516111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9510366920.

The product of its digits is 27000, while the sum is 40.

The spelling of 6115165516111 in words is "six trillion, one hundred fifteen billion, one hundred sixty-five million, five hundred sixteen thousand, one hundred eleven".