6655606171720 has 64 divisors (see below), whose sum is σ = 16486364030400. Its totient is φ = 2398016551680.

The previous prime is 6655606171663. The next prime is 6655606171751. The reversal of 6655606171720 is 271716065566.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69339094 + ... + 69435013.

It is an arithmetic number, because the mean of its divisors is an integer number (257599437975).

Almost surely, 2^{6655606171720} is an apocalyptic number.

It is an amenable number.

6655606171720 is an abundant number, since it is smaller than the sum of its proper divisors (9830757858680).

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

6655606171720 is a wasteful number, since it uses less digits than its factorization.

6655606171720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138774238 (or 138774234 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 6655606171720 in words is "six trillion, six hundred fifty-five billion, six hundred six million, one hundred seventy-one thousand, seven hundred twenty".