71615196133 has 6 divisors (see below), whose sum is σ = 77547816114. Its totient is φ = 66106334736.

The previous prime is 71615196089. The next prime is 71615196139. The reversal of 71615196133 is 33169151617.

It can be written as a sum of positive squares in 3 ways, for example, as 5793188769 + 65822007364 = 76113^2 + 256558^2 .

It is not a de Polignac number, because 71615196133 - 2²⁹ = 71078325221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71615196133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71615196139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211879110 + ... + 211879447.

It is an arithmetic number, because the mean of its divisors is an integer number (12924636019).

Almost surely, 2^71615196133 is an apocalyptic number.

It is an amenable number.

71615196133 is a deficient number, since it is larger than the sum of its proper divisors (5932619981).

71615196133 is a wasteful number, since it uses less digits than its factorization.

71615196133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423758583 (or 423758570 counting only the distinct ones).

The product of its digits is 102060, while the sum is 43.

The spelling of 71615196133 in words is "seventy-one billion, six hundred fifteen million, one hundred ninety-six thousand, one hundred thirty-three".