16644477111360 has 336 divisors, whose sum is σ = 61708084197504. Its totient is φ = 3723502804992.

The previous prime is 16644477111341. The next prime is 16644477111421. The reversal of 16644477111360 is 6311177444661.

It is a tau number, because it is divible by the number of its divisors (336).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 14283852 + ... + 15405108.

Almost surely, 2^{16644477111360} is an apocalyptic number.

16644477111360 is a gapful number since it is divisible by the number (10) 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 16644477111360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30854042098752).

16644477111360 is an abundant number, since it is smaller than the sum of its proper divisors (45063607086144).

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

16644477111360 is a wasteful number, since it uses less digits than its factorization.

16644477111360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121378 (or 1121321 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 16644477111360 in words is "sixteen trillion, six hundred forty-four billion, four hundred seventy-seven million, one hundred eleven thousand, three hundred sixty".