620641453300 has 144 divisors (see below), whose sum is σ = 1506883803264. Its totient is φ = 219960000000.

The previous prime is 620641453297. The next prime is 620641453301. The reversal of 620641453300 is 3354146026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620641453301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8768050 + ... + 8838550.

It is an arithmetic number, because the mean of its divisors is an integer number (10464470856).

Almost surely, 2^620641453300 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 620641453300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (753441901632).

620641453300 is an abundant number, since it is smaller than the sum of its proper divisors (886242349964).

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

620641453300 is a wasteful number, since it uses less digits than its factorization.

620641453300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70730 (or 70723 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 620641453300 its reverse (3354146026), we get a palindrome (623995599326).

The spelling of 620641453300 in words is "six hundred twenty billion, six hundred forty-one million, four hundred fifty-three thousand, three hundred".