11856327065 has 32 divisors (see below), whose sum is σ = 15698530944. Its totient is φ = 8524503040.

The previous prime is 11856327023. The next prime is 11856327071. The reversal of 11856327065 is 56072365811.

It is not a de Polignac number, because 11856327065 - 2⁸ = 11856326809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3276137 + ... + 3279753.

It is an arithmetic number, because the mean of its divisors is an integer number (490579092).

Almost surely, 2^11856327065 is an apocalyptic number.

It is an amenable number.

11856327065 is a deficient number, since it is larger than the sum of its proper divisors (3842203879).

11856327065 is a wasteful number, since it uses less digits than its factorization.

11856327065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 11856327065 in words is "eleven billion, eight hundred fifty-six million, three hundred twenty-seven thousand, sixty-five".