1005610500001 has 4 divisors (see below), whose sum is σ = 1007932926532. Its totient is φ = 1003288073472.

The previous prime is 1005610499969. The next prime is 1005610500043. The reversal of 1005610500001 is 1000050165001.

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 111405750625 + 894204749376 = 333775^2 + 945624^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005610500001 - 2⁵ = 1005610499969 is a prime.

It is a super-2 number, since 2×1005610500001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005610504001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161212616 + ... + 1161213481.

It is an arithmetic number, because the mean of its divisors is an integer number (251983231633).

Almost surely, 2^{1005610500001} is an apocalyptic number.

It is an amenable number.

1005610500001 is a deficient number, since it is larger than the sum of its proper divisors (2322426531).

1005610500001 is an equidigital number, since it uses as much as digits as its factorization.

1005610500001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322426530.

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 1005610500001 its reverse (1000050165001), we get a palindrome (2005660665002).

The spelling of 1005610500001 in words is "one trillion, five billion, six hundred ten million, five hundred thousand, one".