52218516616 has 256 divisors, whose sum is σ = 126216921600. Its totient is φ = 19740672000.

The previous prime is 52218516613. The next prime is 52218516619. The reversal of 52218516616 is 61661581225.

It is an interprime number because it is at equal distance from previous prime (52218516613) and next prime (52218516619).

It is not an unprimeable number, because it can be changed into a prime (52218516611) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 170092735 + ... + 170093041.

It is an arithmetic number, because the mean of its divisors is an integer number (493034850).

Almost surely, 2^52218516616 is an apocalyptic number.

52218516616 is a gapful number since it is divisible by the number (56) 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 52218516616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63108460800).

52218516616 is an abundant number, since it is smaller than the sum of its proper divisors (73998404984).

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

52218516616 is a wasteful number, since it uses less digits than its factorization.

52218516616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 524 counting only the distinct ones).

The product of its digits is 172800, while the sum is 43.

The spelling of 52218516616 in words is "fifty-two billion, two hundred eighteen million, five hundred sixteen thousand, six hundred sixteen".