21440550114352 has 80 divisors (see below), whose sum is σ = 45515603332800. Its totient is φ = 9738703708160.

The previous prime is 21440550114329. The next prime is 21440550114407. The reversal of 21440550114352 is 25341105504412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24889077 + ... + 25736107.

It is an arithmetic number, because the mean of its divisors is an integer number (568945041660).

Almost surely, 2^{21440550114352} 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 21440550114352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22757801666400).

21440550114352 is an abundant number, since it is smaller than the sum of its proper divisors (24075053218448).

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

21440550114352 is a wasteful number, since it uses less digits than its factorization.

21440550114352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850294 (or 850288 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 21440550114352 its reverse (25341105504412), we get a palindrome (46781655618764).

The spelling of 21440550114352 in words is "twenty-one trillion, four hundred forty billion, five hundred fifty million, one hundred fourteen thousand, three hundred fifty-two".