9884144665 has 16 divisors (see below), whose sum is σ = 12254522112. Its totient is φ = 7647511104.

The previous prime is 9884144651. The next prime is 9884144671. The reversal of 9884144665 is 5664414889.

It is a cyclic number.

It is not a de Polignac number, because 9884144665 - 2⁷ = 9884144537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129069 + ... + 190858.

It is an arithmetic number, because the mean of its divisors is an integer number (765907632).

Almost surely, 2^9884144665 is an apocalyptic number.

It is an amenable number.

9884144665 is a deficient number, since it is larger than the sum of its proper divisors (2370377447).

9884144665 is a wasteful number, since it uses less digits than its factorization.

9884144665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320136.

The product of its digits is 6635520, while the sum is 55.

The square root of 9884144665 is about 99419.0357275708. The cubic root of 9884144665 is about 2146.0822589544.

The spelling of 9884144665 in words is "nine billion, eight hundred eighty-four million, one hundred forty-four thousand, six hundred sixty-five".