71606233707523 has 2 divisors, whose sum is σ = 71606233707524. Its totient is φ = 71606233707522.

The previous prime is 71606233707521. The next prime is 71606233707527. The reversal of 71606233707523 is 32570733260617.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71606233707523 - 2¹ = 71606233707521 is a prime.

Together with 71606233707521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71606233707521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35803116853761 + 35803116853762.

It is an arithmetic number, because the mean of its divisors is an integer number (35803116853762).

Almost surely, 2^{71606233707523} is an apocalyptic number.

71606233707523 is a deficient number, since it is larger than the sum of its proper divisors (1).

71606233707523 is an equidigital number, since it uses as much as digits as its factorization.

71606233707523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6667920, while the sum is 52.

The spelling of 71606233707523 in words is "seventy-one trillion, six hundred six billion, two hundred thirty-three million, seven hundred seven thousand, five hundred twenty-three".