999984000065 has 8 divisors (see below), whose sum is σ = 1200035652840. Its totient is φ = 799950631552.

The previous prime is 999984000031. The next prime is 999984000133. The reversal of 999984000065 is 560000489999.

It is a Cunningham number, because it is equal to 999992²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 296628372496 + 703355627569 = 544636^2 + 838663^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 999984000065 - 2²⁶ = 999916891201 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 999983999968 and 999984000013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4450454 + ... + 4669743.

It is an arithmetic number, because the mean of its divisors is an integer number (150004456605).

Almost surely, 2^999984000065 is an apocalyptic number.

It is an amenable number.

999984000065 is a deficient number, since it is larger than the sum of its proper divisors (200051652775).

999984000065 is a wasteful number, since it uses less digits than its factorization.

999984000065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9142131.

The product of its (nonzero) digits is 6298560, while the sum is 59.

The spelling of 999984000065 in words is "nine hundred ninety-nine billion, nine hundred eighty-four million, sixty-five", and thus it is an aban number.