9988560365 has 32 divisors (see below), whose sum is σ = 13783910400. Its totient is φ = 6806790144.

The previous prime is 9988560259. The next prime is 9988560377. The reversal of 9988560365 is 5630658899.

It is not a de Polignac number, because 9988560365 - 2¹⁰ = 9988559341 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4162436 + ... + 4164834.

It is an arithmetic number, because the mean of its divisors is an integer number (430747200).

Almost surely, 2^9988560365 is an apocalyptic number.

It is an amenable number.

9988560365 is a deficient number, since it is larger than the sum of its proper divisors (3795350035).

9988560365 is a wasteful number, since it uses less digits than its factorization.

9988560365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101.

The product of its (nonzero) digits is 13996800, while the sum is 59.

The square root of 9988560365 is about 99942.7854574806. The cubic root of 9988560365 is about 2153.6128450158.

The spelling of 9988560365 in words is "nine billion, nine hundred eighty-eight million, five hundred sixty thousand, three hundred sixty-five".