11806466865 has 16 divisors (see below), whose sum is σ = 18891777408. Its totient is φ = 6296305536.

The previous prime is 11806466851. The next prime is 11806466869. The reversal of 11806466865 is 56866460811.

It is not a de Polignac number, because 11806466865 - 2¹⁶ = 11806401329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11806466869) by changing a digit.

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, 276372 + ... + 316218.

It is an arithmetic number, because the mean of its divisors is an integer number (1180736088).

Almost surely, 2^11806466865 is an apocalyptic number.

11806466865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11806466865 is a deficient number, since it is larger than the sum of its proper divisors (7085310543).

11806466865 is a wasteful number, since it uses less digits than its factorization.

11806466865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59608.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 11806466865 in words is "eleven billion, eight hundred six million, four hundred sixty-six thousand, eight hundred sixty-five".