55128797698224 has 160 divisors (see below), whose sum is σ = 144859928371200. Its totient is φ = 18063124485120.

The previous prime is 55128797698223. The next prime is 55128797698253. The reversal of 55128797698224 is 42289679782155.

It is not an unprimeable number, because it can be changed into a prime (55128797698223) 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, 1101031462 + ... + 1101081530.

It is an arithmetic number, because the mean of its divisors is an integer number (905374552320).

Almost surely, 2^{55128797698224} 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 55128797698224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72429964185600).

55128797698224 is an abundant number, since it is smaller than the sum of its proper divisors (89731130672976).

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

55128797698224 is a wasteful number, since it uses less digits than its factorization.

55128797698224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51443 (or 51437 counting only the distinct ones).

The product of its digits is 1219276800, while the sum is 75.

The spelling of 55128797698224 in words is "fifty-five trillion, one hundred twenty-eight billion, seven hundred ninety-seven million, six hundred ninety-eight thousand, two hundred twenty-four".