71065205606 has 4 divisors (see below), whose sum is σ = 106597808412. Its totient is φ = 35532602802.

The previous prime is 71065205537. The next prime is 71065205641. The reversal of 71065205606 is 60650256017.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 71065205606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17766301400 + ... + 17766301403.

It is an arithmetic number, because the mean of its divisors is an integer number (26649452103).

Almost surely, 2^71065205606 is an apocalyptic number.

71065205606 is a deficient number, since it is larger than the sum of its proper divisors (35532602806).

71065205606 is a wasteful number, since it uses less digits than its factorization.

71065205606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35532602805.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 71065205606 in words is "seventy-one billion, sixty-five million, two hundred five thousand, six hundred six".