1005510535105 has 4 divisors (see below), whose sum is σ = 1206612642132. Its totient is φ = 804408428080.

The previous prime is 1005510535079. The next prime is 1005510535111. The reversal of 1005510535105 is 5015350155001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 701036123841 + 304474411264 = 837279^2 + 551792^2 .

It is not a de Polignac number, because 1005510535105 - 2³⁷ = 868071581633 is a prime.

It is a super-2 number, since 2×1005510535105² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 100551053506 + ... + 100551053515.

It is an arithmetic number, because the mean of its divisors is an integer number (301653160533).

Almost surely, 2^{1005510535105} is an apocalyptic number.

It is an amenable number.

1005510535105 is a deficient number, since it is larger than the sum of its proper divisors (201102107027).

1005510535105 is an equidigital number, since it uses as much as digits as its factorization.

1005510535105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201102107026.

The product of its (nonzero) digits is 9375, while the sum is 31.

The spelling of 1005510535105 in words is "one trillion, five billion, five hundred ten million, five hundred thirty-five thousand, one hundred five".