52840066128 has 160 divisors (see below), whose sum is σ = 152371497600. Its totient is φ = 15680913408.

The previous prime is 52840066057. The next prime is 52840066129. The reversal of 52840066128 is 82166004825.

It is a super-2 number, since 2×52840066128² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52840066128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52840066129) 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, 11982388 + ... + 11986796.

It is an arithmetic number, because the mean of its divisors is an integer number (952321860).

Almost surely, 2^52840066128 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 52840066128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76185748800).

52840066128 is an abundant number, since it is smaller than the sum of its proper divisors (99531431472).

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

52840066128 is a wasteful number, since it uses less digits than its factorization.

52840066128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5229 (or 5223 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 52840066128 in words is "fifty-two billion, eight hundred forty million, sixty-six thousand, one hundred twenty-eight".