11805691716 has 243 divisors, whose sum is σ = 37779945021. Its totient is φ = 3097942848.

The previous prime is 11805691697. The next prime is 11805691727. The reversal of 11805691716 is 61719650811.

The square root of 11805691716 is 108654.

It is a perfect power (a square), and thus also a powerful number.

11805691716 is a `hidden beast` number, since 1 + 1 + 80 + 569 + 1 + 7 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1746404100 + 10059287616 = 41790^2 + 100296^2 .

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 in 80 ways as a sum of consecutive naturals, for example, 59324985 + ... + 59325183.

Almost surely, 2^11805691716 is an apocalyptic number.

11805691716 is the 108654-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11805691716

11805691716 is an abundant number, since it is smaller than the sum of its proper divisors (25974253305).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11805691716 is a wasteful number, since it uses less digits than its factorization.

11805691716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The spelling of 11805691716 in words is "eleven billion, eight hundred five million, six hundred ninety-one thousand, seven hundred sixteen".