6620023063728 has 360 divisors, whose sum is σ = 20452668475200. Its totient is φ = 1992848520960.

The previous prime is 6620023063663. The next prime is 6620023063729. The reversal of 6620023063728 is 8273603200266.

6620023063728 is a `hidden beast` number, since 6 + 6 + 2 + 0 + 0 + 2 + 3 + 0 + 637 + 2 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (6620023063729) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 176144043 + ... + 176181621.

Almost surely, 2^{6620023063728} 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 6620023063728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10226334237600).

6620023063728 is an abundant number, since it is smaller than the sum of its proper divisors (13832645411472).

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

6620023063728 is a wasteful number, since it uses less digits than its factorization.

6620023063728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37741 (or 37701 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 6620023063728 in words is "six trillion, six hundred twenty billion, twenty-three million, sixty-three thousand, seven hundred twenty-eight".