11916666806 has 8 divisors (see below), whose sum is σ = 19500000264. Its totient is φ = 5416666720.

The previous prime is 11916666799. The next prime is 11916666809. The reversal of 11916666806 is 60866661911.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11916666809) 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 3 ways as a sum of consecutive naturals, for example, 270833315 + ... + 270833358.

It is an arithmetic number, because the mean of its divisors is an integer number (2437500033).

Almost surely, 2^11916666806 is an apocalyptic number.

11916666806 is a deficient number, since it is larger than the sum of its proper divisors (7583333458).

11916666806 is a wasteful number, since it uses less digits than its factorization.

11916666806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541666686.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 11916666806 in words is "eleven billion, nine hundred sixteen million, six hundred sixty-six thousand, eight hundred six".