11520553445366 has 16 divisors (see below), whose sum is σ = 19756897738656. Its totient is φ = 4935535661376.

The previous prime is 11520553445341. The next prime is 11520553445371. The reversal of 11520553445366 is 66354435502511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153660071 + ... + 153735026.

It is an arithmetic number, because the mean of its divisors is an integer number (1234806108666).

Almost surely, 2^{11520553445366} is an apocalyptic number.

11520553445366 is a deficient number, since it is larger than the sum of its proper divisors (8236344293290).

11520553445366 is a wasteful number, since it uses less digits than its factorization.

11520553445366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307397783.

The product of its (nonzero) digits is 6480000, while the sum is 50.

Adding to 11520553445366 its reverse (66354435502511), we get a palindrome (77874988947877).

The spelling of 11520553445366 in words is "eleven trillion, five hundred twenty billion, five hundred fifty-three million, four hundred forty-five thousand, three hundred sixty-six".