6620626423040 has 864 divisors, whose sum is σ = 20166807790080. Its totient is φ = 2068165951488.

The previous prime is 6620626423039. The next prime is 6620626423069. The reversal of 6620626423040 is 403246260266.

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, 4464346139 + ... + 4464347621.

It is an arithmetic number, because the mean of its divisors is an integer number (23341212720).

Almost surely, 2^{6620626423040} 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 6620626423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10083403895040).

6620626423040 is an abundant number, since it is smaller than the sum of its proper divisors (13546181367040).

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

6620626423040 is a wasteful number, since it uses less digits than its factorization.

6620626423040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 41.

The spelling of 6620626423040 in words is "six trillion, six hundred twenty billion, six hundred twenty-six million, four hundred twenty-three thousand, forty".