71701566712 has 16 divisors (see below), whose sum is σ = 134465502600. Its totient is φ = 35844099360.

The previous prime is 71701566667. The next prime is 71701566773. The reversal of 71701566712 is 21766510717.

It is a super-2 number, since 2×71701566712² (a number of 23 digits) contains 22 as substring.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 789762 + ... + 875857.

Almost surely, 2^71701566712 is an apocalyptic number.

It is an amenable number.

71701566712 is a deficient number, since it is larger than the sum of its proper divisors (62763935888).

71701566712 is a wasteful number, since it uses less digits than its factorization.

71701566712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671006 (or 1671002 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 43.

The spelling of 71701566712 in words is "seventy-one billion, seven hundred one million, five hundred sixty-six thousand, seven hundred twelve".