71556164022 has 32 divisors (see below), whose sum is σ = 166894848000. Its totient is φ = 20444617704.

The previous prime is 71556164003. The next prime is 71556164039. The reversal of 71556164022 is 22046165517.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17382822 + ... + 17386937.

It is an arithmetic number, because the mean of its divisors is an integer number (5215464000).

Almost surely, 2^71556164022 is an apocalyptic number.

71556164022 is an abundant number, since it is smaller than the sum of its proper divisors (95338683978).

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

71556164022 is a wasteful number, since it uses less digits than its factorization.

71556164022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34769785 (or 34769771 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 71556164022 in words is "seventy-one billion, five hundred fifty-six million, one hundred sixty-four thousand, twenty-two".