56105550611011 has 16 divisors (see below), whose sum is σ = 64429064265600. Its totient is φ = 48319341609600.

The previous prime is 56105550610969. The next prime is 56105550611023. The reversal of 56105550611011 is 11011605550165.

It is a cyclic number.

It is not a de Polignac number, because 56105550611011 - 2⁷ = 56105550610883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56105550671011) 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, 4877776 + ... + 11662066.

It is an arithmetic number, because the mean of its divisors is an integer number (4026816516600).

Almost surely, 2^{56105550611011} is an apocalyptic number.

56105550611011 is a deficient number, since it is larger than the sum of its proper divisors (8323513654589).

56105550611011 is a wasteful number, since it uses less digits than its factorization.

56105550611011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6823890.

The product of its (nonzero) digits is 22500, while the sum is 37.

The spelling of 56105550611011 in words is "fifty-six trillion, one hundred five billion, five hundred fifty million, six hundred eleven thousand, eleven".