56105500611 has 16 divisors (see below), whose sum is σ = 75885984000. Its totient is φ = 36867856608.

The previous prime is 56105500609. The next prime is 56105500663. The reversal of 56105500611 is 11600550165.

It is not a de Polignac number, because 56105500611 - 2¹ = 56105500609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56105500681) 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, 375276 + ... + 503033.

It is an arithmetic number, because the mean of its divisors is an integer number (4742874000).

Almost surely, 2^56105500611 is an apocalyptic number.

56105500611 is a deficient number, since it is larger than the sum of its proper divisors (19780483389).

56105500611 is a wasteful number, since it uses less digits than its factorization.

56105500611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878618.

The product of its (nonzero) digits is 4500, while the sum is 30.

It can be divided in two parts, 5610 and 5500611, that added together give a triangular number (5506221 = T₃₃₁₈).

The spelling of 56105500611 in words is "fifty-six billion, one hundred five million, five hundred thousand, six hundred eleven".