3020820065720 has 128 divisors (see below), whose sum is σ = 7112317363200. Its totient is φ = 1153659926016.

The previous prime is 3020820065621. The next prime is 3020820065789. The reversal of 3020820065720 is 275600280203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18978707 + ... + 19137213.

It is an arithmetic number, because the mean of its divisors is an integer number (55564979400).

Almost surely, 2^{3020820065720} 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 3020820065720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3556158681600).

3020820065720 is an abundant number, since it is smaller than the sum of its proper divisors (4091497297480).

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

3020820065720 is a wasteful number, since it uses less digits than its factorization.

3020820065720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158797 (or 158793 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 3020820065720 in words is "three trillion, twenty billion, eight hundred twenty million, sixty-five thousand, seven hundred twenty".