71043066149 has 8 divisors (see below), whose sum is σ = 80871158592. Its totient is φ = 61776579040.

The previous prime is 71043066139. The next prime is 71043066163. The reversal of 71043066149 is 94166034017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-71043066149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71043066109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140401064 + ... + 140401569.

It is an arithmetic number, because the mean of its divisors is an integer number (10108894824).

Almost surely, 2^71043066149 is an apocalyptic number.

It is an amenable number.

71043066149 is a deficient number, since it is larger than the sum of its proper divisors (9828092443).

71043066149 is a wasteful number, since it uses less digits than its factorization.

71043066149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280802667.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 71043066149 in words is "seventy-one billion, forty-three million, sixty-six thousand, one hundred forty-nine".