6771677161 has 16 divisors (see below), whose sum is σ = 7159698000. Its totient is φ = 6395155200.

The previous prime is 6771677153. The next prime is 6771677177. The reversal of 6771677161 is 1617761776.

It can be written as a sum of positive squares in 8 ways, for example, as 3899253136 + 2872424025 = 62444^2 + 53595^2 .

It is a cyclic number.

It is not a de Polignac number, because 6771677161 - 2³ = 6771677153 is a prime.

It is a super-2 number, since 2×6771677161² = 91711223145618039842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6771677141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309615 + ... + 330763.

It is an arithmetic number, because the mean of its divisors is an integer number (447481125).

Almost surely, 2^6771677161 is an apocalyptic number.

6771677161 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6771677161 is a deficient number, since it is larger than the sum of its proper divisors (388020839).

6771677161 is a wasteful number, since it uses less digits than its factorization.

6771677161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21420.

The product of its digits is 518616, while the sum is 49.

The square root of 6771677161 is about 82290.2008807853. The cubic root of 6771677161 is about 1891.9024879644.

The spelling of 6771677161 in words is "six billion, seven hundred seventy-one million, six hundred seventy-seven thousand, one hundred sixty-one".