6555556511115 has 32 divisors (see below), whose sum is σ = 10554292590336. Its totient is φ = 3474500365440.

The previous prime is 6555556511093. The next prime is 6555556511117. The reversal of 6555556511115 is 5111156555556.

It is not a de Polignac number, because 6555556511115 - 2²¹ = 6555554413963 is a prime.

It is a super-2 number, since 2×6555556511115² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6555556511117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25365445 + ... + 25622585.

It is an arithmetic number, because the mean of its divisors is an integer number (329821643448).

Almost surely, 2^{6555556511115} is an apocalyptic number.

6555556511115 is a deficient number, since it is larger than the sum of its proper divisors (3998736079221).

6555556511115 is a wasteful number, since it uses less digits than its factorization.

6555556511115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267739.

The product of its digits is 2812500, while the sum is 51.

The spelling of 6555556511115 in words is "six trillion, five hundred fifty-five billion, five hundred fifty-six million, five hundred eleven thousand, one hundred fifteen".