620244210320 has 80 divisors (see below), whose sum is σ = 1649097843840. Its totient is φ = 212523497472.

The previous prime is 620244210293. The next prime is 620244210331. The reversal of 620244210320 is 23012442026.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 620244210320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564584 + ... + 1248696.

It is an arithmetic number, because the mean of its divisors is an integer number (20613723048).

Almost surely, 2^620244210320 is an apocalyptic number.

It is an amenable number.

620244210320 is an abundant number, since it is smaller than the sum of its proper divisors (1028853633520).

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

620244210320 is a wasteful number, since it uses less digits than its factorization.

620244210320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685752 (or 685746 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 620244210320 its reverse (23012442026), we get a palindrome (643256652346).

The spelling of 620244210320 in words is "six hundred twenty billion, two hundred forty-four million, two hundred ten thousand, three hundred twenty".