6716171081 has 4 divisors (see below), whose sum is σ = 6720130452. Its totient is φ = 6712211712.

The previous prime is 6716171071. The next prime is 6716171107. The reversal of 6716171081 is 1801716176.

6716171081 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 can be written as a sum of positive squares in 2 ways, for example, as 5610010000 + 1106161081 = 74900^2 + 33259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6716171081 is a prime.

It is a super-2 number, since 2×6716171081² = 90213907978521417122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6716171041) 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, 1977140 + ... + 1980533.

It is an arithmetic number, because the mean of its divisors is an integer number (1680032613).

Almost surely, 2^6716171081 is an apocalyptic number.

It is an amenable number.

6716171081 is a deficient number, since it is larger than the sum of its proper divisors (3959371).

6716171081 is a wasteful number, since it uses less digits than its factorization.

6716171081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959370.

The product of its (nonzero) digits is 14112, while the sum is 38.

The square root of 6716171081 is about 81952.2487854970. The cubic root of 6716171081 is about 1886.7191179208.

The spelling of 6716171081 in words is "six billion, seven hundred sixteen million, one hundred seventy-one thousand, eighty-one".