16641408705432 has 128 divisors (see below), whose sum is σ = 48271065661440. Its totient is φ = 4682816409600.

The previous prime is 16641408705431. The next prime is 16641408705437. The reversal of 16641408705432 is 23450780414661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16641408705431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76432 + ... + 5769632.

It is an arithmetic number, because the mean of its divisors is an integer number (377117700480).

Almost surely, 2^{16641408705432} is an apocalyptic number.

16641408705432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16641408705432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24135532830720).

16641408705432 is an abundant number, since it is smaller than the sum of its proper divisors (31629656956008).

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

16641408705432 is a wasteful number, since it uses less digits than its factorization.

16641408705432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693481 (or 5693477 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 16641408705432 in words is "sixteen trillion, six hundred forty-one billion, four hundred eight million, seven hundred five thousand, four hundred thirty-two".