6621017898060 has 576 divisors, whose sum is σ = 21284418355200. Its totient is φ = 1664324153856.

The previous prime is 6621017898059. The next prime is 6621017898067. The reversal of 6621017898060 is 608987101266.

6621017898060 is a `hidden beast` number, since 6 + 621 + 0 + 1 + 7 + 8 + 9 + 8 + 0 + 6 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6621017897988 and 6621017898006.

It is not an unprimeable number, because it can be changed into a prime (6621017898067) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8044978809 + ... + 8044979631.

It is an arithmetic number, because the mean of its divisors is an integer number (36952115200).

Almost surely, 2^{6621017898060} is an apocalyptic number.

6621017898060 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 6621017898060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10642209177600).

6621017898060 is an abundant number, since it is smaller than the sum of its proper divisors (14663400457140).

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

6621017898060 is a wasteful number, since it uses less digits than its factorization.

6621017898060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 6621017898060 in words is "six trillion, six hundred twenty-one billion, seventeen million, eight hundred ninety-eight thousand, sixty".