11043651216665 has 8 divisors (see below), whose sum is σ = 13412048707008. Its totient is φ = 8728476142000.

The previous prime is 11043651216659. The next prime is 11043651216677. The reversal of 11043651216665 is 56661215634011.

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

It is not a de Polignac number, because 11043651216665 - 2¹⁶ = 11043651151129 is a prime.

It is a Duffinian number.

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, 13305603461 + ... + 13305604290.

It is an arithmetic number, because the mean of its divisors is an integer number (1676506088376).

Almost surely, 2^{11043651216665} is an apocalyptic number.

It is an amenable number.

11043651216665 is a deficient number, since it is larger than the sum of its proper divisors (2368397490343).

11043651216665 is an equidigital number, since it uses as much as digits as its factorization.

11043651216665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26611207839.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 11043651216665 in words is "eleven trillion, forty-three billion, six hundred fifty-one million, two hundred sixteen thousand, six hundred sixty-five".