620521160 has 64 divisors (see below), whose sum is σ = 1600888320. Its totient is φ = 212048640.

The previous prime is 620521151. The next prime is 620521189. The reversal of 620521160 is 61125026.

620521160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 85265 + ... + 92255.

It is an arithmetic number, because the mean of its divisors is an integer number (25013880).

Almost surely, 2^620521160 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 620521160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (800444160).

620521160 is an abundant number, since it is smaller than the sum of its proper divisors (980367160).

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

620521160 is a wasteful number, since it uses less digits than its factorization.

620521160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7326 (or 7322 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 620521160 is about 24910.2621423380. The cubic root of 620521160 is about 852.9407529857.

Adding to 620521160 its reverse (61125026), we get a palindrome (681646186).

The spelling of 620521160 in words is "six hundred twenty million, five hundred twenty-one thousand, one hundred sixty".