7071661229 has 2 divisors, whose sum is σ = 7071661230. Its totient is φ = 7071661228.

The previous prime is 7071661133. The next prime is 7071661231. The reversal of 7071661229 is 9221661707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6705972100 + 365689129 = 81890^2 + 19123^2 .

It is a cyclic number.

It is not a de Polignac number, because 7071661229 - 2¹² = 7071657133 is a prime.

Together with 7071661231, 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 (7071669229) 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, 3535830614 + 3535830615.

It is an arithmetic number, because the mean of its divisors is an integer number (3535830615).

Almost surely, 2^7071661229 is an apocalyptic number.

It is an amenable number.

7071661229 is a deficient number, since it is larger than the sum of its proper divisors (1).

7071661229 is an equidigital number, since it uses as much as digits as its factorization.

7071661229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 7071661229 is about 84093.1699307381. The cubic root of 7071661229 is about 1919.4367948954.

The spelling of 7071661229 in words is "seven billion, seventy-one million, six hundred sixty-one thousand, two hundred twenty-nine".