1105605505105 has 8 divisors (see below), whose sum is σ = 1327068833832. Its totient is φ = 884256252288.

The previous prime is 1105605505073. The next prime is 1105605505139. The reversal of 1105605505105 is 5015055065011.

It can be written as a sum of positive squares in 4 ways, for example, as 333173692944 + 772431812161 = 577212^2 + 878881^2 .

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 1105605505105 - 2⁵ = 1105605505073 is a prime.

It is a super-2 number, since 2×1105605505105² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28497652 + ... + 28536421.

It is an arithmetic number, because the mean of its divisors is an integer number (165883604229).

Almost surely, 2^{1105605505105} is an apocalyptic number.

It is an amenable number.

1105605505105 is a deficient number, since it is larger than the sum of its proper divisors (221463328727).

1105605505105 is an equidigital number, since it uses as much as digits as its factorization.

1105605505105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57037955.

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 1105605505105 in words is "one trillion, one hundred five billion, six hundred five million, five hundred five thousand, one hundred five".