620156680 has 128 divisors (see below), whose sum is σ = 1651104000. Its totient is φ = 206668800.

The previous prime is 620156653. The next prime is 620156687. The reversal of 620156680 is 86651026.

620156680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (620156687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1035021 + ... + 1035619.

It is an arithmetic number, because the mean of its divisors is an integer number (12899250).

Almost surely, 2^620156680 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 620156680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825552000).

620156680 is an abundant number, since it is smaller than the sum of its proper divisors (1030947320).

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

620156680 is a wasteful number, since it uses less digits than its factorization.

620156680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 620156680 is about 24902.9452073445. The cubic root of 620156680 is about 852.7737209523.

The spelling of 620156680 in words is "six hundred twenty million, one hundred fifty-six thousand, six hundred eighty".