620320757760 has 1152 divisors, whose sum is σ = 2464966183680. Its totient is φ = 148370227200.

The previous prime is 620320757747. The next prime is 620320757827. The reversal of 620320757760 is 67757023026.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3585669034 + ... + 3585669206.

It is an arithmetic number, because the mean of its divisors is an integer number (2139727590).

Almost surely, 2^620320757760 is an apocalyptic number.

620320757760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620320757760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1232483091840).

620320757760 is an abundant number, since it is smaller than the sum of its proper divisors (1844645425920).

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

620320757760 is a wasteful number, since it uses less digits than its factorization.

620320757760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 45.

The spelling of 620320757760 in words is "six hundred twenty billion, three hundred twenty million, seven hundred fifty-seven thousand, seven hundred sixty".