6655129946208 has 384 divisors, whose sum is σ = 20147790458880. Its totient is φ = 2134978560000.

The previous prime is 6655129946207. The next prime is 6655129946219. The reversal of 6655129946208 is 8026499215566.

It is a happy number.

6655129946208 is a `hidden beast` number, since 6 + 6 + 5 + 512 + 9 + 94 + 6 + 20 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655129946207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5115395158 + ... + 5115396458.

It is an arithmetic number, because the mean of its divisors is an integer number (52468204320).

Almost surely, 2^{6655129946208} 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 6655129946208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10073895229440).

6655129946208 is an abundant number, since it is smaller than the sum of its proper divisors (13492660512672).

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

6655129946208 is a wasteful number, since it uses less digits than its factorization.

6655129946208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259 (or 2245 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 6655129946208 in words is "six trillion, six hundred fifty-five billion, one hundred twenty-nine million, nine hundred forty-six thousand, two hundred eight".