71558650464 has 48 divisors (see below), whose sum is σ = 214675953408. Its totient is φ = 20445328512.

The previous prime is 71558650447. The next prime is 71558650483. The reversal of 71558650464 is 46405685517.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53242372 + ... + 53243715.

It is an arithmetic number, because the mean of its divisors is an integer number (4472415696).

Almost surely, 2^71558650464 is an apocalyptic number.

It is an amenable number.

71558650464 is an abundant number, since it is smaller than the sum of its proper divisors (143117302944).

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

71558650464 is a wasteful number, since it uses less digits than its factorization.

71558650464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106486107 (or 106486099 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 71558650464 in words is "seventy-one billion, five hundred fifty-eight million, six hundred fifty thousand, four hundred sixty-four".