16545207633416 has 512 divisors, whose sum is σ = 42848870400000. Its totient is φ = 5793861242880.

The previous prime is 16545207633373. The next prime is 16545207633469. The reversal of 16545207633416 is 61433670254561.

It is a happy number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 4036398935 + ... + 4036403033.

It is an arithmetic number, because the mean of its divisors is an integer number (83689200000).

Almost surely, 2^{16545207633416} 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 16545207633416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21424435200000).

16545207633416 is an abundant number, since it is smaller than the sum of its proper divisors (26303662766584).

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

16545207633416 is a wasteful number, since it uses less digits than its factorization.

16545207633416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385 (or 4381 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 53.

Adding to 16545207633416 its reverse (61433670254561), we get a palindrome (77978877887977).

The spelling of 16545207633416 in words is "sixteen trillion, five hundred forty-five billion, two hundred seven million, six hundred thirty-three thousand, four hundred sixteen".