6557313071 has 2 divisors, whose sum is σ = 6557313072. Its totient is φ = 6557313070.

The previous prime is 6557313067. The next prime is 6557313073. The reversal of 6557313071 is 1703137556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6557313071 - 2² = 6557313067 is a prime.

It is a super-2 number, since 2×6557313071² = 85996709422214902082, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 6557313073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6557313073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278656535 + 3278656536.

It is an arithmetic number, because the mean of its divisors is an integer number (3278656536).

Almost surely, 2^6557313071 is an apocalyptic number.

6557313071 is a deficient number, since it is larger than the sum of its proper divisors (1).

6557313071 is an equidigital number, since it uses as much as digits as its factorization.

6557313071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 6557313071 is about 80977.2379808054. The cubic root of 6557313071 is about 1871.7247064823.

The spelling of 6557313071 in words is "six billion, five hundred fifty-seven million, three hundred thirteen thousand, seventy-one".