It is a self number, because there is not a number n which added to its sum of digits gives 9100078507020.
Almost surely, 29100078507020 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 9100078507020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12877971210720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9100078507020 is a wasteful number, since it uses less digits than its factorization.
9100078507020 is an evil number, because the sum of its binary digits is even.
The spelling of 9100078507020 in words is "nine trillion, one hundred billion, seventy-eight million, five hundred seven thousand, twenty".