1005500002105 has 4 divisors (see below), whose sum is σ = 1206600002532. Its totient is φ = 804400001680.

The previous prime is 1005500002093. The next prime is 1005500002141. The reversal of 1005500002105 is 5012000055001.

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 656988060304 + 348511941801 = 810548^2 + 590349^2 .

It is not a de Polignac number, because 1005500002105 - 2⁷ = 1005500001977 is a prime.

It is a super-2 number, since 2×1005500002105² (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 3 ways as a sum of consecutive naturals, for example, 100550000206 + ... + 100550000215.

It is an arithmetic number, because the mean of its divisors is an integer number (301650000633).

Almost surely, 2^{1005500002105} is an apocalyptic number.

It is an amenable number.

1005500002105 is a deficient number, since it is larger than the sum of its proper divisors (201100000427).

1005500002105 is an equidigital number, since it uses as much as digits as its factorization.

1005500002105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201100000426.

The product of its (nonzero) digits is 250, while the sum is 19.

Adding to 1005500002105 its reverse (5012000055001), we get a palindrome (6017500057106).

The spelling of 1005500002105 in words is "one trillion, five billion, five hundred million, two thousand, one hundred five".