71365361565642 has 16 divisors (see below), whose sum is σ = 146050042274400. Its totient is φ = 23235233998032.

The previous prime is 71365361565613. The next prime is 71365361565647. The reversal of 71365361565642 is 24656516356317.

It is not an unprimeable number, because it can be changed into a prime (71365361565647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138304964017 + ... + 138304964532.

It is an arithmetic number, because the mean of its divisors is an integer number (9128127642150).

Almost surely, 2^{71365361565642} is an apocalyptic number.

71365361565642 is an abundant number, since it is smaller than the sum of its proper divisors (74684680708758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71365361565642 is a wasteful number, since it uses less digits than its factorization.

71365361565642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276609928597.

The product of its digits is 81648000, while the sum is 60.

The spelling of 71365361565642 in words is "seventy-one trillion, three hundred sixty-five billion, three hundred sixty-one million, five hundred sixty-five thousand, six hundred forty-two".