1005550055111 has 8 divisors (see below), whose sum is σ = 1149294042144. Its totient is φ = 861829562880.

The previous prime is 1005550055087. The next prime is 1005550055173. The reversal of 1005550055111 is 1115500555001.

It is a happy number.

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 1005550055111 - 2³⁰ = 1004476313287 is a prime.

It is a super-2 number, since 2×1005550055111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005550055311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5781890 + ... + 5953263.

It is an arithmetic number, because the mean of its divisors is an integer number (143661755268).

Almost surely, 2^{1005550055111} is an apocalyptic number.

1005550055111 is a deficient number, since it is larger than the sum of its proper divisors (143743987033).

1005550055111 is a wasteful number, since it uses less digits than its factorization.

1005550055111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11747401.

The product of its (nonzero) digits is 3125, while the sum is 29.

The spelling of 1005550055111 in words is "one trillion, five billion, five hundred fifty million, fifty-five thousand, one hundred eleven".