21332674480128 has 384 divisors, whose sum is σ = 65062625846400. Its totient is φ = 6155993088000.

The previous prime is 21332674480127. The next prime is 21332674480177. The reversal of 21332674480128 is 82108447623312.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (21332674480127) 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, 143000778 + ... + 143149878.

It is an arithmetic number, because the mean of its divisors is an integer number (169433921475).

Almost surely, 2^{21332674480128} 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 21332674480128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32531312923200).

21332674480128 is an abundant number, since it is smaller than the sum of its proper divisors (43729951366272).

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

21332674480128 is a wasteful number, since it uses less digits than its factorization.

21332674480128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149239 (or 149219 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 21332674480128 in words is "twenty-one trillion, three hundred thirty-two billion, six hundred seventy-four million, four hundred eighty thousand, one hundred twenty-eight".