11991306466 has 8 divisors (see below), whose sum is σ = 17999568720. Its totient is φ = 5991450228.

The previous prime is 11991306463. The next prime is 11991306469. The reversal of 11991306466 is 66460319911.

11991306466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11991306463) and next prime (11991306469).

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

It is not an unprimeable number, because it can be changed into a prime (11991306461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2097936 + ... + 2103643.

It is an arithmetic number, because the mean of its divisors is an integer number (2249946090).

Almost surely, 2^11991306466 is an apocalyptic number.

11991306466 is a deficient number, since it is larger than the sum of its proper divisors (6008262254).

11991306466 is a wasteful number, since it uses less digits than its factorization.

11991306466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203008.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 11991306466 in words is "eleven billion, nine hundred ninety-one million, three hundred six thousand, four hundred sixty-six".