71563520148 has 12 divisors (see below), whose sum is σ = 166981547040. Its totient is φ = 23854506712.

The previous prime is 71563520143. The next prime is 71563520167. The reversal of 71563520148 is 84102536517.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71563520143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2981813328 + ... + 2981813351.

It is an arithmetic number, because the mean of its divisors is an integer number (13915128920).

Almost surely, 2^71563520148 is an apocalyptic number.

It is an amenable number.

71563520148 is an abundant number, since it is smaller than the sum of its proper divisors (95418026892).

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

71563520148 is a wasteful number, since it uses less digits than its factorization.

71563520148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5963626686 (or 5963626684 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 71563520148 in words is "seventy-one billion, five hundred sixty-three million, five hundred twenty thousand, one hundred forty-eight".