11516666171709 has 32 divisors (see below), whose sum is σ = 16277023042560. Its totient is φ = 7218056518400.

The previous prime is 11516666171707. The next prime is 11516666171771. The reversal of 11516666171709 is 90717166661511.

It is a cyclic number.

It is not a de Polignac number, because 11516666171709 - 2¹ = 11516666171707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11516666171701) 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, 614835874 + ... + 614854604.

It is an arithmetic number, because the mean of its divisors is an integer number (508656970080).

Almost surely, 2^{11516666171709} is an apocalyptic number.

It is an amenable number.

11516666171709 is a deficient number, since it is larger than the sum of its proper divisors (4760356870851).

11516666171709 is a wasteful number, since it uses less digits than its factorization.

11516666171709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31601.

The product of its (nonzero) digits is 2857680, while the sum is 57.

The spelling of 11516666171709 in words is "eleven trillion, five hundred sixteen billion, six hundred sixty-six million, one hundred seventy-one thousand, seven hundred nine".