6611116505 has 48 divisors (see below), whose sum is σ = 9356996880. Its totient is φ = 4470681600.

The previous prime is 6611116489. The next prime is 6611116541. The reversal of 6611116505 is 5056111166.

It can be written as a sum of positive squares in 8 ways, for example, as 21086464 + 6590030041 = 4592^2 + 81179^2 .

It is not a de Polignac number, because 6611116505 - 2⁴ = 6611116489 is a prime.

It is a super-2 number, since 2×6611116505² = 87413722885366830050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7503665 + ... + 7504545.

It is an arithmetic number, because the mean of its divisors is an integer number (194937435).

Almost surely, 2^6611116505 is an apocalyptic number.

It is an amenable number.

6611116505 is a deficient number, since it is larger than the sum of its proper divisors (2745880375).

6611116505 is a wasteful number, since it uses less digits than its factorization.

6611116505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290 (or 1283 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 6611116505 is about 81308.7726201792. The cubic root of 6611116505 is about 1876.8300004787.

The spelling of 6611116505 in words is "six billion, six hundred eleven million, one hundred sixteen thousand, five hundred five".