11866336508 has 24 divisors (see below), whose sum is σ = 22367037840. Its totient is φ = 5475899520.

The previous prime is 11866336507. The next prime is 11866336511. The reversal of 11866336508 is 80563366811.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11866336501) 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 7 ways as a sum of consecutive naturals, for example, 406523 + ... + 434733.

It is an arithmetic number, because the mean of its divisors is an integer number (931959910).

Almost surely, 2^11866336508 is an apocalyptic number.

It is an amenable number.

11866336508 is a deficient number, since it is larger than the sum of its proper divisors (10500701332).

11866336508 is a wasteful number, since it uses less digits than its factorization.

11866336508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36317 (or 36315 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 11866336508 in words is "eleven billion, eight hundred sixty-six million, three hundred thirty-six thousand, five hundred eight".