6216388855560 has 1536 divisors, whose sum is σ = 24841642291200. Its totient is φ = 1372597125120.

The previous prime is 6216388855507. The next prime is 6216388855609. The reversal of 6216388855560 is 655588836126.

6216388855560 is a `hidden beast` number, since 6 + 2 + 1 + 63 + 8 + 8 + 8 + 5 + 5 + 560 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 9182257942 + ... + 9182258618.

It is an arithmetic number, because the mean of its divisors is an integer number (16172944200).

Almost surely, 2^{6216388855560} is an apocalyptic number.

6216388855560 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 6216388855560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12420821145600).

6216388855560 is an abundant number, since it is smaller than the sum of its proper divisors (18625253435640).

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

6216388855560 is a wasteful number, since it uses less digits than its factorization.

6216388855560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 82944000, while the sum is 63.

The spelling of 6216388855560 in words is "six trillion, two hundred sixteen billion, three hundred eighty-eight million, eight hundred fifty-five thousand, five hundred sixty".