11555606066651 has 4 divisors (see below), whose sum is σ = 11928367552704. Its totient is φ = 11182844580600.

The previous prime is 11555606066629. The next prime is 11555606066671. The reversal of 11555606066651 is 15666060655511.

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

It is a cyclic number.

It is not a de Polignac number, because 11555606066651 - 2³⁰ = 11554532324827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11555606066593 and 11555606066602.

It is not an unprimeable number, because it can be changed into a prime (11555606066671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186380742980 + ... + 186380743041.

It is an arithmetic number, because the mean of its divisors is an integer number (2982091888176).

Almost surely, 2^{11555606066651} is an apocalyptic number.

11555606066651 is a deficient number, since it is larger than the sum of its proper divisors (372761486053).

11555606066651 is an equidigital number, since it uses as much as digits as its factorization.

11555606066651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372761486052.

The product of its (nonzero) digits is 4860000, while the sum is 53.

The spelling of 11555606066651 in words is "eleven trillion, five hundred fifty-five billion, six hundred six million, sixty-six thousand, six hundred fifty-one".