6555017100720 has 160 divisors (see below), whose sum is σ = 22204889510400. Its totient is φ = 1586441758720.

The previous prime is 6555017100677. The next prime is 6555017100721. The reversal of 6555017100720 is 270017105556.

It is not an unprimeable number, because it can be changed into a prime (6555017100721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 491229 + ... + 3653948.

It is an arithmetic number, because the mean of its divisors is an integer number (138780559440).

Almost surely, 2^{6555017100720} is an apocalyptic number.

6555017100720 is a gapful number since it is divisible by the number (60) 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 6555017100720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11102444755200).

6555017100720 is an abundant number, since it is smaller than the sum of its proper divisors (15649872409680).

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

6555017100720 is a wasteful number, since it uses less digits than its factorization.

6555017100720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145803 (or 4145797 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 39.

The spelling of 6555017100720 in words is "six trillion, five hundred fifty-five billion, seventeen million, one hundred thousand, seven hundred twenty".