2661106717 has 4 divisors (see below), whose sum is σ = 2661231420. Its totient is φ = 2660982016.

The previous prime is 2661106687. The next prime is 2661106727. The reversal of 2661106717 is 7176011662.

2661106717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 574992441 + 2086114276 = 23979^2 + 45674^2 .

It is a cyclic number.

It is not a de Polignac number, because 2661106717 - 2⁷ = 2661106589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661106727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21358 + ... + 76015.

It is an arithmetic number, because the mean of its divisors is an integer number (665307855).

Almost surely, 2^2661106717 is an apocalyptic number.

It is an amenable number.

2661106717 is a deficient number, since it is larger than the sum of its proper divisors (124703).

2661106717 is an equidigital number, since it uses as much as digits as its factorization.

2661106717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124702.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 2661106717 is about 51585.9158782705. The cubic root of 2661106717 is about 1385.7581146683.

The spelling of 2661106717 in words is "two billion, six hundred sixty-one million, one hundred six thousand, seven hundred seventeen".