11381208806 has 32 divisors (see below), whose sum is σ = 19296564768. Its totient is φ = 4988874240.

The previous prime is 11381208793. The next prime is 11381208823. The reversal of 11381208806 is 60880218311.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 11381208806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30116 + ... + 153848.

It is an arithmetic number, because the mean of its divisors is an integer number (603017649).

Almost surely, 2^11381208806 is an apocalyptic number.

11381208806 is a deficient number, since it is larger than the sum of its proper divisors (7915355962).

11381208806 is a wasteful number, since it uses less digits than its factorization.

11381208806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123896.

The product of its (nonzero) digits is 18432, while the sum is 38.

The spelling of 11381208806 in words is "eleven billion, three hundred eighty-one million, two hundred eight thousand, eight hundred six".