16432565743636 has 72 divisors (see below), whose sum is σ = 35224406280000. Its totient is φ = 6669639567360.

The previous prime is 16432565743631. The next prime is 16432565743681. The reversal of 16432565743636 is 63634756523461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16432565743631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10432596 + ... + 11903956.

It is an arithmetic number, because the mean of its divisors is an integer number (489227865000).

Almost surely, 2^{16432565743636} 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 16432565743636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17612203140000).

16432565743636 is an abundant number, since it is smaller than the sum of its proper divisors (18791840536364).

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

16432565743636 is a wasteful number, since it uses less digits than its factorization.

16432565743636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474397 (or 1474388 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 61.

The spelling of 16432565743636 in words is "sixteen trillion, four hundred thirty-two billion, five hundred sixty-five million, seven hundred forty-three thousand, six hundred thirty-six".