71662466447 has 24 divisors (see below), whose sum is σ = 85402852848. Its totient is φ = 59603980800.

The previous prime is 71662466431. The next prime is 71662466483. The reversal of 71662466447 is 74466426617.

It is not a de Polignac number, because 71662466447 - 2⁴ = 71662466431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71662466047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39497 + ... + 380637.

It is an arithmetic number, because the mean of its divisors is an integer number (3558452202).

Almost surely, 2^71662466447 is an apocalyptic number.

71662466447 is a deficient number, since it is larger than the sum of its proper divisors (13740386401).

71662466447 is a wasteful number, since it uses less digits than its factorization.

71662466447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341291 (or 341278 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 53.

The spelling of 71662466447 in words is "seventy-one billion, six hundred sixty-two million, four hundred sixty-six thousand, four hundred forty-seven".