105555505505 has 8 divisors (see below), whose sum is σ = 126700890792. Its totient is φ = 84421548288.

The previous prime is 105555505501. The next prime is 105555505519. The reversal of 105555505505 is 505505555501.

It can be written as a sum of positive squares in 4 ways, for example, as 8958243904 + 96597261601 = 94648^2 + 310801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105555505505 - 2² = 105555505501 is a prime.

It is a super-2 number, since 2×105555505505² (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 (105555505501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2836682 + ... + 2873651.

It is an arithmetic number, because the mean of its divisors is an integer number (15837611349).

Almost surely, 2^105555505505 is an apocalyptic number.

It is an amenable number.

105555505505 is a deficient number, since it is larger than the sum of its proper divisors (21145385287).

105555505505 is an equidigital number, since it uses as much as digits as its factorization.

105555505505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714035.

The product of its (nonzero) digits is 390625, while the sum is 41.

The spelling of 105555505505 in words is "one hundred five billion, five hundred fifty-five million, five hundred five thousand, five hundred five".