71906567716 has 9 divisors (see below), whose sum is σ = 125837432049. Its totient is φ = 35953015704.

The previous prime is 71906567701. The next prime is 71906567749. The reversal of 71906567716 is 61776560917.

The square root of 71906567716 is 268154.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 71647228900 + 259338816 = 267670^2 + 16104^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 469270 + ... + 603346.

Almost surely, 2^71906567716 is an apocalyptic number.

71906567716 is the 268154-th square number.

It is an amenable number.

71906567716 is a deficient number, since it is larger than the sum of its proper divisors (53930864333).

71906567716 is an frugal number, since it uses more digits than its factorization.

71906567716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268158 (or 134079 counting only the distinct ones).

The product of its (nonzero) digits is 3333960, while the sum is 55.

The spelling of 71906567716 in words is "seventy-one billion, nine hundred six million, five hundred sixty-seven thousand, seven hundred sixteen".