2606690171 has 4 divisors (see below), whose sum is σ = 2662151712. Its totient is φ = 2551228632.

The previous prime is 2606690159. The next prime is 2606690173. The reversal of 2606690171 is 1710966062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2606690171 - 2²² = 2602495867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2606690173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27730700 + ... + 27730793.

It is an arithmetic number, because the mean of its divisors is an integer number (665537928).

Almost surely, 2^2606690171 is an apocalyptic number.

2606690171 is a deficient number, since it is larger than the sum of its proper divisors (55461541).

2606690171 is an equidigital number, since it uses as much as digits as its factorization.

2606690171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55461540.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2606690171 is about 51055.7555129684. The cubic root of 2606690171 is about 1376.2472730513.

The spelling of 2606690171 in words is "two billion, six hundred six million, six hundred ninety thousand, one hundred seventy-one".