6557327377 has 2 divisors, whose sum is σ = 6557327378. Its totient is φ = 6557327376.

The previous prime is 6557327353. The next prime is 6557327383. The reversal of 6557327377 is 7737237556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6266147281 + 291180096 = 79159^2 + 17064^2 .

It is a cyclic number.

It is not a de Polignac number, because 6557327377 - 2¹¹ = 6557325329 is a prime.

It is not a weakly prime, because it can be changed into another prime (6557327317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278663688 + 3278663689.

It is an arithmetic number, because the mean of its divisors is an integer number (3278663689).

Almost surely, 2^6557327377 is an apocalyptic number.

It is an amenable number.

6557327377 is a deficient number, since it is larger than the sum of its proper divisors (1).

6557327377 is an equidigital number, since it uses as much as digits as its factorization.

6557327377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6482700, while the sum is 52.

The square root of 6557327377 is about 80977.3263142221. The cubic root of 6557327377 is about 1871.7260676533.

The spelling of 6557327377 in words is "six billion, five hundred fifty-seven million, three hundred twenty-seven thousand, three hundred seventy-seven".