71065415424 has 72 divisors (see below), whose sum is σ = 191801699712. Its totient is φ = 23354813440.

The previous prime is 71065415419. The next prime is 71065415431. The reversal of 71065415424 is 42451456017.

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, 597114 + ... + 706169.

It is an arithmetic number, because the mean of its divisors is an integer number (2663912496).

Almost surely, 2^71065415424 is an apocalyptic number.

It is an amenable number.

71065415424 is an abundant number, since it is smaller than the sum of its proper divisors (120736284288).

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

71065415424 is a wasteful number, since it uses less digits than its factorization.

71065415424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303373 (or 1303359 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 71065415424 in words is "seventy-one billion, sixty-five million, four hundred fifteen thousand, four hundred twenty-four".