11766616766 has 4 divisors (see below), whose sum is σ = 17649925152. Its totient is φ = 5883308382.

The previous prime is 11766616739. The next prime is 11766616783. The reversal of 11766616766 is 66761666711.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2941654190 + ... + 2941654193.

It is an arithmetic number, because the mean of its divisors is an integer number (4412481288).

Almost surely, 2^11766616766 is an apocalyptic number.

11766616766 is a deficient number, since it is larger than the sum of its proper divisors (5883308386).

11766616766 is an equidigital number, since it uses as much as digits as its factorization.

11766616766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5883308385.

The product of its digits is 2286144, while the sum is 53.

The spelling of 11766616766 in words is "eleven billion, seven hundred sixty-six million, six hundred sixteen thousand, seven hundred sixty-six".