2306166105665 has 8 divisors (see below), whose sum is σ = 2930187522600. Its totient is φ = 1736407420672.

The previous prime is 2306166105653. The next prime is 2306166105703. The reversal of 2306166105665 is 5665016616032.

It can be written as a sum of positive squares in 4 ways, for example, as 619191150769 + 1686974954896 = 786887^2 + 1298836^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2306166105665 - 2¹⁴ = 2306166089281 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13565682890 + ... + 13565683059.

It is an arithmetic number, because the mean of its divisors is an integer number (366273440325).

Almost surely, 2^{2306166105665} is an apocalyptic number.

It is an amenable number.

2306166105665 is a deficient number, since it is larger than the sum of its proper divisors (624021416935).

2306166105665 is a wasteful number, since it uses less digits than its factorization.

2306166105665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27131365971.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 2306166105665 in words is "two trillion, three hundred six billion, one hundred sixty-six million, one hundred five thousand, six hundred sixty-five".