995985181811 has 8 divisors (see below), whose sum is σ = 1043332817184. Its totient is φ = 948974540800.

The previous prime is 995985181757. The next prime is 995985181817. The reversal of 995985181811 is 118181589599.

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 995985181811 - 2¹⁸ = 995984919667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (995985181817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84242540 + ... + 84254361.

It is an arithmetic number, because the mean of its divisors is an integer number (130416602148).

Almost surely, 2^995985181811 is an apocalyptic number.

995985181811 is a deficient number, since it is larger than the sum of its proper divisors (47347635373).

995985181811 is a wasteful number, since it uses less digits than its factorization.

995985181811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168497181.

The product of its digits is 9331200, while the sum is 65.

The spelling of 995985181811 in words is "nine hundred ninety-five billion, nine hundred eighty-five million, one hundred eighty-one thousand, eight hundred eleven".