11771824777066 has 16 divisors (see below), whose sum is σ = 17749437360264. Its totient is φ = 5855346376704.

The previous prime is 11771824777003. The next prime is 11771824777079. The reversal of 11771824777066 is 66077742817711.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8907508857025 + 2864315920041 = 2984545^2 + 1692429^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11771824776989 and 11771824777007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52730856 + ... + 52953628.

Almost surely, 2^{11771824777066} is an apocalyptic number.

11771824777066 is a deficient number, since it is larger than the sum of its proper divisors (5977612583198).

11771824777066 is a wasteful number, since it uses less digits than its factorization.

11771824777066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359865.

The product of its (nonzero) digits is 38723328, while the sum is 64.

The spelling of 11771824777066 in words is "eleven trillion, seven hundred seventy-one billion, eight hundred twenty-four million, seven hundred seventy-seven thousand, sixty-six".