1021066480768 has 128 divisors (see below), whose sum is σ = 2197568620800. Its totient is φ = 471115223040.

The previous prime is 1021066480757. The next prime is 1021066480781. The reversal of 1021066480768 is 8670846601201.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124047213 + ... + 124055443.

It is an arithmetic number, because the mean of its divisors is an integer number (17168504850).

Almost surely, 2^{1021066480768} 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 1021066480768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1098784310400).

1021066480768 is an abundant number, since it is smaller than the sum of its proper divisors (1176502140032).

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

1021066480768 is a wasteful number, since it uses less digits than its factorization.

1021066480768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9750 (or 9738 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 1021066480768 in words is "one trillion, twenty-one billion, sixty-six million, four hundred eighty thousand, seven hundred sixty-eight".