6740165777 has 2 divisors, whose sum is σ = 6740165778. Its totient is φ = 6740165776.

The previous prime is 6740165759. The next prime is 6740165833. The reversal of 6740165777 is 7775610476.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5578446721 + 1161719056 = 74689^2 + 34084^2 .

It is a cyclic number.

It is not a de Polignac number, because 6740165777 - 2⁶ = 6740165713 is a prime.

It is not a weakly prime, because it can be changed into another prime (6740135777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3370082888 + 3370082889.

It is an arithmetic number, because the mean of its divisors is an integer number (3370082889).

Almost surely, 2^6740165777 is an apocalyptic number.

It is an amenable number.

6740165777 is a deficient number, since it is larger than the sum of its proper divisors (1).

6740165777 is an equidigital number, since it uses as much as digits as its factorization.

6740165777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728720, while the sum is 50.

The square root of 6740165777 is about 82098.5126357354. The cubic root of 6740165777 is about 1888.9633254573.

The spelling of 6740165777 in words is "six billion, seven hundred forty million, one hundred sixty-five thousand, seven hundred seventy-seven".