6720641928000 has 3360 divisors, whose sum is σ = 33607708662528. Its totient is φ = 1287456768000.

The previous prime is 6720641927983. The next prime is 6720641928079. The reversal of 6720641928000 is 8291460276.

It is a happy number.

6720641928000 is a `hidden beast` number, since 6 + 7 + 206 + 419 + 28 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 8432423602 + ... + 8432424398.

Almost surely, 2^{6720641928000} is an apocalyptic number.

6720641928000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6720641928000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16803854331264).

6720641928000 is an abundant number, since it is smaller than the sum of its proper divisors (26887066734528).

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

6720641928000 is a wasteful number, since it uses less digits than its factorization.

6720641928000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 6720641928000 in words is "six trillion, seven hundred twenty billion, six hundred forty-one million, nine hundred twenty-eight thousand".