71660632884 has 12 divisors (see below), whose sum is σ = 167208143424. Its totient is φ = 23886877624.

The previous prime is 71660632871. The next prime is 71660632907. The reversal of 71660632884 is 48823606617.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2985859692 + ... + 2985859715.

It is an arithmetic number, because the mean of its divisors is an integer number (13934011952).

Almost surely, 2^71660632884 is an apocalyptic number.

It is an amenable number.

71660632884 is an abundant number, since it is smaller than the sum of its proper divisors (95547510540).

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

71660632884 is a wasteful number, since it uses less digits than its factorization.

71660632884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5971719414 (or 5971719412 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 71660632884 in words is "seventy-one billion, six hundred sixty million, six hundred thirty-two thousand, eight hundred eighty-four".