6720841633 has 16 divisors (see below), whose sum is σ = 7966679040. Its totient is φ = 5601560400.

The previous prime is 6720841613. The next prime is 6720841639. The reversal of 6720841633 is 3361480276.

It is a cyclic number.

It is not a de Polignac number, because 6720841633 - 2⁵ = 6720841601 is a prime.

It is a super-2 number, since 2×6720841633² = 90339424511732213378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6720841639) 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 15 ways as a sum of consecutive naturals, for example, 512185 + ... + 525142.

It is an arithmetic number, because the mean of its divisors is an integer number (497917440).

Almost surely, 2^6720841633 is an apocalyptic number.

It is an amenable number.

6720841633 is a deficient number, since it is larger than the sum of its proper divisors (1245837407).

6720841633 is a wasteful number, since it uses less digits than its factorization.

6720841633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037388.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 6720841633 is about 81980.7394026182. The cubic root of 6720841633 is about 1887.1563699279.

The spelling of 6720841633 in words is "six billion, seven hundred twenty million, eight hundred forty-one thousand, six hundred thirty-three".