1330665071 has 2 divisors, whose sum is σ = 1330665072. Its totient is φ = 1330665070.

The previous prime is 1330664989. The next prime is 1330665073. The reversal of 1330665071 is 1705660331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1330665071 - 2²² = 1326470767 is a prime.

Together with 1330665073, 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 (1330665073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665332535 + 665332536.

It is an arithmetic number, because the mean of its divisors is an integer number (665332536).

Almost surely, 2^1330665071 is an apocalyptic number.

1330665071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330665071 is an equidigital number, since it uses as much as digits as its factorization.

1330665071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 1330665071 is about 36478.2821826906. The cubic root of 1330665071 is about 1099.9077253175.

The spelling of 1330665071 in words is "one billion, three hundred thirty million, six hundred sixty-five thousand, seventy-one".