21440554414132 has 48 divisors (see below), whose sum is σ = 43116782598400. Its totient is φ = 9138350783232.

The previous prime is 21440554414127. The next prime is 21440554414133. The reversal of 21440554414132 is 23141445504412.

It is a super-2 number, since 2×21440554414132² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21440554414133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11007058 + ... + 12807670.

Almost surely, 2^{21440554414132} is an apocalyptic number.

It is an amenable number.

21440554414132 is an abundant number, since it is smaller than the sum of its proper divisors (21676228184268).

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

21440554414132 is a wasteful number, since it uses less digits than its factorization.

21440554414132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802960 (or 1802958 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 40.

Adding to 21440554414132 its reverse (23141445504412), we get a palindrome (44581999918544).

The spelling of 21440554414132 in words is "twenty-one trillion, four hundred forty billion, five hundred fifty-four million, four hundred fourteen thousand, one hundred thirty-two".