11850580666 has 16 divisors (see below), whose sum is σ = 17835180480. Its totient is φ = 5905539360.

The previous prime is 11850580661. The next prime is 11850580669. The reversal of 11850580666 is 66608505811.

It is not an unprimeable number, because it can be changed into a prime (11850580661) 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, 1806805 + ... + 1813351.

It is an arithmetic number, because the mean of its divisors is an integer number (1114698780).

Almost surely, 2^11850580666 is an apocalyptic number.

11850580666 is a deficient number, since it is larger than the sum of its proper divisors (5984599814).

11850580666 is a wasteful number, since it uses less digits than its factorization.

11850580666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9429.

The product of its (nonzero) digits is 345600, while the sum is 46.

The spelling of 11850580666 in words is "eleven billion, eight hundred fifty million, five hundred eighty thousand, six hundred sixty-six".