11066542611555 has 16 divisors (see below), whose sum is σ = 17716744753920. Its totient is φ = 5898730534368.

The previous prime is 11066542611517. The next prime is 11066542611559. The reversal of 11066542611555 is 55511624566011.

It is not a de Polignac number, because 11066542611555 - 2⁹ = 11066542611043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11066542611559) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 214068615 + ... + 214120304.

It is an arithmetic number, because the mean of its divisors is an integer number (1107296547120).

Almost surely, 2^{11066542611555} is an apocalyptic number.

11066542611555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11066542611555 is a deficient number, since it is larger than the sum of its proper divisors (6650202142365).

11066542611555 is a wasteful number, since it uses less digits than its factorization.

11066542611555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428190650.

The product of its (nonzero) digits is 1080000, while the sum is 48.

The spelling of 11066542611555 in words is "eleven trillion, sixty-six billion, five hundred forty-two million, six hundred eleven thousand, five hundred fifty-five".