620020657360 has 320 divisors, whose sum is σ = 1611796838400. Its totient is φ = 220368715776.

The previous prime is 620020657303. The next prime is 620020657411. The reversal of 620020657360 is 63756020026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1561764682 + ... + 1561765078.

It is an arithmetic number, because the mean of its divisors is an integer number (5036865120).

Almost surely, 2^620020657360 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 620020657360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805898419200).

620020657360 is an abundant number, since it is smaller than the sum of its proper divisors (991776181040).

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

620020657360 is a wasteful number, since it uses less digits than its factorization.

620020657360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

Adding to 620020657360 its reverse (63756020026), we get a palindrome (683776677386).

The spelling of 620020657360 in words is "six hundred twenty billion, twenty million, six hundred fifty-seven thousand, three hundred sixty".