6611771518128 has 120 divisors (see below), whose sum is σ = 21150143644448. Its totient is φ = 1888812297216.

The previous prime is 6611771518127. The next prime is 6611771518207. The reversal of 6611771518128 is 8218151771166.

6611771518128 is a `hidden beast` number, since 6 + 6 + 117 + 7 + 1 + 518 + 1 + 2 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (6611771518127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6777450 + ... + 7691382.

Almost surely, 2^{6611771518128} is an apocalyptic number.

It is an amenable number.

6611771518128 is an abundant number, since it is smaller than the sum of its proper divisors (14538372126320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6611771518128 is a wasteful number, since it uses less digits than its factorization.

6611771518128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921131 (or 921122 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 54.

The spelling of 6611771518128 in words is "six trillion, six hundred eleven billion, seven hundred seventy-one million, five hundred eighteen thousand, one hundred twenty-eight".