It is a congruent number.
Almost surely, 2345545583523840 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 345545583523840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529093559554560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
345545583523840 is a wasteful number, since it uses less digits than its factorization.
345545583523840 is an odious number, because the sum of its binary digits is odd.
The spelling of 345545583523840 in words is "three hundred forty-five trillion, five hundred forty-five billion, five hundred eighty-three million, five hundred twenty-three thousand, eight hundred forty".