6805168057 has 4 divisors (see below), whose sum is σ = 6989091556. Its totient is φ = 6621244560.

The previous prime is 6805168031. The next prime is 6805168061. The reversal of 6805168057 is 7508615086.

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 4230721936 + 2574446121 = 65044^2 + 50739^2 .

It is a cyclic number.

It is not a de Polignac number, because 6805168057 - 2¹⁵ = 6805135289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6805167998 and 6805168016.

It is not an unprimeable number, because it can be changed into a prime (6805168087) 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, 91961694 + ... + 91961767.

It is an arithmetic number, because the mean of its divisors is an integer number (1747272889).

Almost surely, 2^6805168057 is an apocalyptic number.

It is an amenable number.

6805168057 is a deficient number, since it is larger than the sum of its proper divisors (183923499).

6805168057 is a wasteful number, since it uses less digits than its factorization.

6805168057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183923498.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 6805168057 is about 82493.4425090867. The cubic root of 6805168057 is about 1895.0163073670.

The spelling of 6805168057 in words is "six billion, eight hundred five million, one hundred sixty-eight thousand, fifty-seven".