996018031009 has 16 divisors (see below), whose sum is σ = 1049276448000. Its totient is φ = 943596029376.

The previous prime is 996018030977. The next prime is 996018031039. The reversal of 996018031009 is 900130810699.

It is a 2-Lehmer number, since φ(996018031009) divides (996018031009-1)².

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 996018031009 - 2⁵ = 996018030977 is a prime.

It is a deceptive number, since it divides R_996018031008.

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 996018031009.

It is not an unprimeable number, because it can be changed into a prime (996018031039) 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, 6312412 + ... + 6468274.

It is an arithmetic number, because the mean of its divisors is an integer number (65579778000).

It is a Poulet number, since it divides 2^996018031008-1.

Almost surely, 2^996018031009 is an apocalyptic number.

It is an amenable number.

996018031009 is a deficient number, since it is larger than the sum of its proper divisors (53258416991).

996018031009 is a wasteful number, since it uses less digits than its factorization.

996018031009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158544.

The product of its (nonzero) digits is 104976, while the sum is 46.

The spelling of 996018031009 in words is "nine hundred ninety-six billion, eighteen million, thirty-one thousand, nine".