6611531838311 has 8 divisors (see below), whose sum is σ = 6620830302240. Its totient is φ = 6602234451232.

The previous prime is 6611531838283. The next prime is 6611531838313. The reversal of 6611531838311 is 1138381351166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6611531838311 is a prime.

It is a super-3 number, since 3×6611531838311³ (a number of 39 digits) contains 333 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 (6611531838313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12439805 + ... + 12960393.

It is an arithmetic number, because the mean of its divisors is an integer number (827603787780).

Almost surely, 2^{6611531838311} is an apocalyptic number.

6611531838311 is a deficient number, since it is larger than the sum of its proper divisors (9298463929).

6611531838311 is a wasteful number, since it uses less digits than its factorization.

6611531838311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538425.

The product of its digits is 311040, while the sum is 47.

The spelling of 6611531838311 in words is "six trillion, six hundred eleven billion, five hundred thirty-one million, eight hundred thirty-eight thousand, three hundred eleven".