105560556011 has 4 divisors (see below), whose sum is σ = 105599756832. Its totient is φ = 105521355192.

The previous prime is 105560555983. The next prime is 105560556043. The reversal of 105560556011 is 110655065501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105560556011 is a prime.

It is a super-2 number, since 2×105560556011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105560556061) 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 3 ways as a sum of consecutive naturals, for example, 19596371 + ... + 19601756.

It is an arithmetic number, because the mean of its divisors is an integer number (26399939208).

Almost surely, 2^105560556011 is an apocalyptic number.

105560556011 is a deficient number, since it is larger than the sum of its proper divisors (39200821).

105560556011 is an equidigital number, since it uses as much as digits as its factorization.

105560556011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39200820.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 105560556011 in words is "one hundred five billion, five hundred sixty million, five hundred fifty-six thousand, eleven".