16653745687089 has 128 divisors (see below), whose sum is σ = 26333314560000. Its totient is φ = 9357027531264.

The previous prime is 16653745687067. The next prime is 16653745687123. The reversal of 16653745687089 is 98078654735661.

It is not a de Polignac number, because 16653745687089 - 2¹¹ = 16653745685041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16653745687089.

It is not an unprimeable number, because it can be changed into a prime (16653745677089) 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 127 ways as a sum of consecutive naturals, for example, 12129457207 + ... + 12129458579.

It is an arithmetic number, because the mean of its divisors is an integer number (205729020000).

Almost surely, 2^{16653745687089} is an apocalyptic number.

It is an amenable number.

16653745687089 is a deficient number, since it is larger than the sum of its proper divisors (9679568872911).

16653745687089 is a wasteful number, since it uses less digits than its factorization.

16653745687089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292 (or 2278 counting only the distinct ones).

The product of its (nonzero) digits is 1828915200, while the sum is 75.

The spelling of 16653745687089 in words is "sixteen trillion, six hundred fifty-three billion, seven hundred forty-five million, six hundred eighty-seven thousand, eighty-nine".