6720168537336 has 128 divisors (see below), whose sum is σ = 18123842016000. Its totient is φ = 2068906444800.

The previous prime is 6720168537289. The next prime is 6720168537343. The reversal of 6720168537336 is 6337358610276.

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 31 ways as a sum of consecutive naturals, for example, 4379811 + ... + 5711661.

It is an arithmetic number, because the mean of its divisors is an integer number (141592515750).

Almost surely, 2^{6720168537336} 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 6720168537336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9061921008000).

6720168537336 is an abundant number, since it is smaller than the sum of its proper divisors (11403673478664).

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

6720168537336 is a wasteful number, since it uses less digits than its factorization.

6720168537336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332109 (or 1332105 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 57.

The spelling of 6720168537336 in words is "six trillion, seven hundred twenty billion, one hundred sixty-eight million, five hundred thirty-seven thousand, three hundred thirty-six".