5521234512128 has 144 divisors (see below), whose sum is σ = 11885696807040. Its totient is φ = 2551888281600.

The previous prime is 5521234512127. The next prime is 5521234512133. The reversal of 5521234512128 is 8212154321255.

It is not an unprimeable number, because it can be changed into a prime (5521234512127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33415958 + ... + 33580778.

It is an arithmetic number, because the mean of its divisors is an integer number (82539561160).

Almost surely, 2^{5521234512128} 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 5521234512128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5942848403520).

5521234512128 is an abundant number, since it is smaller than the sum of its proper divisors (6364462294912).

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

5521234512128 is a wasteful number, since it uses less digits than its factorization.

5521234512128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165024 (or 165010 counting only the distinct ones).

The product of its digits is 192000, while the sum is 41.

The spelling of 5521234512128 in words is "five trillion, five hundred twenty-one billion, two hundred thirty-four million, five hundred twelve thousand, one hundred twenty-eight".