71006530885 has 16 divisors (see below), whose sum is σ = 89001843840. Its totient is φ = 54313922880.

The previous prime is 71006530877. The next prime is 71006530901. The reversal of 71006530885 is 58803560017.

It is not a de Polignac number, because 71006530885 - 2³ = 71006530877 is a prime.

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, 2362251 + ... + 2392120.

It is an arithmetic number, because the mean of its divisors is an integer number (5562615240).

Almost surely, 2^71006530885 is an apocalyptic number.

It is an amenable number.

71006530885 is a deficient number, since it is larger than the sum of its proper divisors (17995312955).

71006530885 is a wasteful number, since it uses less digits than its factorization.

71006530885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754508.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 71006530885 in words is "seventy-one billion, six million, five hundred thirty thousand, eight hundred eighty-five".