6688912961088 has 336 divisors, whose sum is σ = 20737762456320. Its totient is φ = 2055002492928.

The previous prime is 6688912961053. The next prime is 6688912961119. The reversal of 6688912961088 is 8801692198866.

It is a super-2 number, since 2×6688912961088² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

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 47 ways as a sum of consecutive naturals, for example, 193231270 + ... + 193265882.

It is an arithmetic number, because the mean of its divisors is an integer number (61719531120).

Almost surely, 2^{6688912961088} 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 6688912961088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10368881228160).

6688912961088 is an abundant number, since it is smaller than the sum of its proper divisors (14048849495232).

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

6688912961088 is a wasteful number, since it uses less digits than its factorization.

6688912961088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35186 (or 35173 counting only the distinct ones).

The product of its (nonzero) digits is 143327232, while the sum is 72.

The spelling of 6688912961088 in words is "six trillion, six hundred eighty-eight billion, nine hundred twelve million, nine hundred sixty-one thousand, eighty-eight".