11662818836 has 12 divisors (see below), whose sum is σ = 20907736500. Its totient is φ = 5689179840.

The previous prime is 11662818833. The next prime is 11662818847. The reversal of 11662818836 is 63881826611.

11662818836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4997076100 + 6665742736 = 70690^2 + 81644^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11662818833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35557211 + ... + 35557538.

It is an arithmetic number, because the mean of its divisors is an integer number (1742311375).

Almost surely, 2^11662818836 is an apocalyptic number.

It is an amenable number.

11662818836 is a deficient number, since it is larger than the sum of its proper divisors (9244917664).

11662818836 is a wasteful number, since it uses less digits than its factorization.

11662818836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71114794 (or 71114792 counting only the distinct ones).

The product of its digits is 663552, while the sum is 50.

The spelling of 11662818836 in words is "eleven billion, six hundred sixty-two million, eight hundred eighteen thousand, eight hundred thirty-six".