6611406871 has 4 divisors (see below), whose sum is σ = 6618895192. Its totient is φ = 6603918552.

The previous prime is 6611406853. The next prime is 6611406887. The reversal of 6611406871 is 1786041166.

6611406871 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 6611406871 - 2⁹ = 6611406359 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 (6611406671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3742836 + ... + 3744601.

It is an arithmetic number, because the mean of its divisors is an integer number (1654723798).

Almost surely, 2^6611406871 is an apocalyptic number.

6611406871 is a deficient number, since it is larger than the sum of its proper divisors (7488321).

6611406871 is an equidigital number, since it uses as much as digits as its factorization.

6611406871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7488320.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 6611406871 is about 81310.5581766599. The cubic root of 6611406871 is about 1876.8574774130.

The spelling of 6611406871 in words is "six billion, six hundred eleven million, four hundred six thousand, eight hundred seventy-one".