712171021016 has 64 divisors (see below), whose sum is σ = 1644574881600. Its totient is φ = 281548850688.

The previous prime is 712171021007. The next prime is 712171021039. The reversal of 712171021016 is 610120171217.

It is a self number, because there is not a number n which added to its sum of digits gives 712171021016.

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 15 ways as a sum of consecutive naturals, for example, 759290 + ... + 1414518.

It is an arithmetic number, because the mean of its divisors is an integer number (25696482525).

Almost surely, 2^712171021016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712171021016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822287440800).

712171021016 is an abundant number, since it is smaller than the sum of its proper divisors (932403860584).

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

712171021016 is a wasteful number, since it uses less digits than its factorization.

712171021016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656748 (or 656744 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 29.

The spelling of 712171021016 in words is "seven hundred twelve billion, one hundred seventy-one million, twenty-one thousand, sixteen".