11966623706 has 4 divisors (see below), whose sum is σ = 17949935562. Its totient is φ = 5983311852.

The previous prime is 11966623679. The next prime is 11966623741. The reversal of 11966623706 is 60732666911.

11966623706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60732666911 = 7 ⋅8676095273.

It can be written as a sum of positive squares in only one way, i.e., 8499180481 + 3467443225 = 92191^2 + 58885^2 .

It is a Curzon number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2991655925 + ... + 2991655928.

Almost surely, 2^11966623706 is an apocalyptic number.

11966623706 is a deficient number, since it is larger than the sum of its proper divisors (5983311856).

11966623706 is an equidigital number, since it uses as much as digits as its factorization.

11966623706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983311855.

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 11966623706 in words is "eleven billion, nine hundred sixty-six million, six hundred twenty-three thousand, seven hundred six".