7217020660068 has 96 divisors (see below), whose sum is σ = 19170715374720. Its totient is φ = 2346562644480.

The previous prime is 7217020660061. The next prime is 7217020660079. The reversal of 7217020660068 is 8600660207127.

7217020660068 is a `hidden beast` number, since 7 + 2 + 17 + 0 + 20 + 6 + 600 + 6 + 8 = 666.

It is a super-3 number, since 3×7217020660068³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7217020660061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24130096 + ... + 24427352.

It is an arithmetic number, because the mean of its divisors is an integer number (199694951820).

Almost surely, 2^{7217020660068} 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 7217020660068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9585357687360).

7217020660068 is an abundant number, since it is smaller than the sum of its proper divisors (11953694714652).

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

7217020660068 is a wasteful number, since it uses less digits than its factorization.

7217020660068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302794 (or 302786 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 7217020660068 in words is "seven trillion, two hundred seventeen billion, twenty million, six hundred sixty thousand, sixty-eight".