11866123841 has 8 divisors (see below), whose sum is σ = 13940621184. Its totient is φ = 9957586320.

The previous prime is 11866123831. The next prime is 11866123847. The reversal of 11866123841 is 14832166811.

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

It is not a de Polignac number, because 11866123841 - 2¹⁸ = 11865861697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11866123847) 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, 41489801 + ... + 41490086.

It is an arithmetic number, because the mean of its divisors is an integer number (1742577648).

Almost surely, 2^11866123841 is an apocalyptic number.

11866123841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11866123841 is a deficient number, since it is larger than the sum of its proper divisors (2074497343).

11866123841 is a wasteful number, since it uses less digits than its factorization.

11866123841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82979911.

The product of its digits is 55296, while the sum is 41.

The spelling of 11866123841 in words is "eleven billion, eight hundred sixty-six million, one hundred twenty-three thousand, eight hundred forty-one".