6662075599872 has 3960 divisors, whose sum is σ = 28841704657920. Its totient is φ = 1517477068800.

The previous prime is 6662075599871. The next prime is 6662075599897. The reversal of 6662075599872 is 2789955702666.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6662075599872.

It is not an unprimeable number, because it can be changed into a prime (6662075599871) by changing a digit.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 214905664497 + ... + 214905664527.

It is an arithmetic number, because the mean of its divisors is an integer number (7283258752).

Almost surely, 2^{6662075599872} is an apocalyptic number.

6662075599872 is a gapful number since it is divisible by the number (62) 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 6662075599872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14420852328960).

6662075599872 is an abundant number, since it is smaller than the sum of its proper divisors (22179629058048).

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

6662075599872 is a wasteful number, since it uses less digits than its factorization.

6662075599872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 685843200, while the sum is 72.

The spelling of 6662075599872 in words is "six trillion, six hundred sixty-two billion, seventy-five million, five hundred ninety-nine thousand, eight hundred seventy-two".