71164891371 has 16 divisors (see below), whose sum is σ = 108459419904. Its totient is φ = 40659021984.

The previous prime is 71164891333. The next prime is 71164891373. The reversal of 71164891371 is 17319846117.

It is not a de Polignac number, because 71164891371 - 2⁹ = 71164890859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71164891371.

It is not an unprimeable number, because it can be changed into a prime (71164891373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142896 + ... + 403421.

It is an arithmetic number, because the mean of its divisors is an integer number (6778713744).

Almost surely, 2^71164891371 is an apocalyptic number.

71164891371 is a deficient number, since it is larger than the sum of its proper divisors (37294528533).

71164891371 is a wasteful number, since it uses less digits than its factorization.

71164891371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552530.

The product of its digits is 254016, while the sum is 48.

The spelling of 71164891371 in words is "seventy-one billion, one hundred sixty-four million, eight hundred ninety-one thousand, three hundred seventy-one".