8016644466109 has 16 divisors (see below), whose sum is σ = 8443646496000. Its totient is φ = 7590151056384.

The previous prime is 8016644466101. The next prime is 8016644466139. The reversal of 8016644466109 is 9016644466108.

It is a cyclic number.

It is not a de Polignac number, because 8016644466109 - 2³ = 8016644466101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8016644466109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8016644466101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299819989 + ... + 299846725.

It is an arithmetic number, because the mean of its divisors is an integer number (527727906000).

Almost surely, 2^{8016644466109} is an apocalyptic number.

It is an amenable number.

8016644466109 is a deficient number, since it is larger than the sum of its proper divisors (427002029891).

8016644466109 is a wasteful number, since it uses less digits than its factorization.

8016644466109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35652.

The product of its (nonzero) digits is 5971968, while the sum is 55.

Subtracting 8016644466109 from its reverse (9016644466108), we obtain a palindrome (999999999999).

The spelling of 8016644466109 in words is "eight trillion, sixteen billion, six hundred forty-four million, four hundred sixty-six thousand, one hundred nine".