990063000865 has 16 divisors (see below), whose sum is σ = 1196080485120. Its totient is φ = 786715012800.

The previous prime is 990063000809. The next prime is 990063000877. The reversal of 990063000865 is 568000360099.

990063000865 is a nontrivial binomial coefficient, being equal to C(1407170, 2).

It is not a de Polignac number, because 990063000865 - 2¹⁹ = 990062476577 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 6965487 + ... + 7106203.

It is an arithmetic number, because the mean of its divisors is an integer number (74755030320).

Almost surely, 2^990063000865 is an apocalyptic number.

990063000865 is the 1407169-th triangular number and also the 703585-th hexagonal number.

990063000865 is the 469057-th centered nonagonal number.

It is an amenable number.

990063000865 is a deficient number, since it is larger than the sum of its proper divisors (206017484255).

990063000865 is a wasteful number, since it uses less digits than its factorization.

990063000865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150192.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 990063000865 in words is "nine hundred ninety billion, sixty-three million, eight hundred sixty-five", and thus it is an aban number.