71710086161 has 4 divisors (see below), whose sum is σ = 81954384192. Its totient is φ = 61465788132.

The previous prime is 71710086157. The next prime is 71710086167. The reversal of 71710086161 is 16168001717.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 71710086161 - 2² = 71710086157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71710086167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5122149005 + ... + 5122149018.

It is an arithmetic number, because the mean of its divisors is an integer number (20488596048).

Almost surely, 2^71710086161 is an apocalyptic number.

It is an amenable number.

71710086161 is a deficient number, since it is larger than the sum of its proper divisors (10244298031).

71710086161 is a wasteful number, since it uses less digits than its factorization.

71710086161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10244298030.

The product of its (nonzero) digits is 14112, while the sum is 38.

Adding to 71710086161 its reverse (16168001717), we get a palindrome (87878087878).

The spelling of 71710086161 in words is "seventy-one billion, seven hundred ten million, eighty-six thousand, one hundred sixty-one".