11566051051055 has 16 divisors (see below), whose sum is σ = 13952191680000. Its totient is φ = 9204222397440.

The previous prime is 11566051051007. The next prime is 11566051051123. The reversal of 11566051051055 is 55015015066511.

It is not a de Polignac number, because 11566051051055 - 2⁶ = 11566051050991 is a prime.

It is a super-2 number, since 2×11566051051055² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78741821 + ... + 78888569.

It is an arithmetic number, because the mean of its divisors is an integer number (872011980000).

Almost surely, 2^{11566051051055} is an apocalyptic number.

11566051051055 is a deficient number, since it is larger than the sum of its proper divisors (2386140628945).

11566051051055 is a wasteful number, since it uses less digits than its factorization.

11566051051055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229474.

The product of its (nonzero) digits is 112500, while the sum is 41.

The spelling of 11566051051055 in words is "eleven trillion, five hundred sixty-six billion, fifty-one million, fifty-one thousand, fifty-five".