11806681067 has 4 divisors (see below), whose sum is σ = 12501191736. Its totient is φ = 11112170400.

The previous prime is 11806680971. The next prime is 11806681079. The reversal of 11806681067 is 76018660811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76018660811 = 877 ⋅86680343.

It is a cyclic number.

It is not a de Polignac number, because 11806681067 - 2²⁰ = 11805632491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11806651067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347255309 + ... + 347255342.

It is an arithmetic number, because the mean of its divisors is an integer number (3125297934).

Almost surely, 2^11806681067 is an apocalyptic number.

11806681067 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11806681067 is a deficient number, since it is larger than the sum of its proper divisors (694510669).

11806681067 is an equidigital number, since it uses as much as digits as its factorization.

11806681067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694510668.

The product of its (nonzero) digits is 96768, while the sum is 44.

The spelling of 11806681067 in words is "eleven billion, eight hundred six million, six hundred eighty-one thousand, sixty-seven".