1005056110555 has 72 divisors (see below), whose sum is σ = 1435722840000. Its totient is φ = 673454767104.

The previous prime is 1005056110547. The next prime is 1005056110609. The reversal of 1005056110555 is 5550116505001.

It is not a de Polignac number, because 1005056110555 - 2³ = 1005056110547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1005056110555.

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 71 ways as a sum of consecutive naturals, for example, 502778446 + ... + 502780444.

It is an arithmetic number, because the mean of its divisors is an integer number (19940595000).

Almost surely, 2^{1005056110555} is an apocalyptic number.

1005056110555 is a deficient number, since it is larger than the sum of its proper divisors (430666729445).

1005056110555 is an equidigital number, since it uses as much as digits as its factorization.

1005056110555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041 (or 2987 counting only the distinct ones).

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

The spelling of 1005056110555 in words is "one trillion, five billion, fifty-six million, one hundred ten thousand, five hundred fifty-five".