10506005111005 has 4 divisors (see below), whose sum is σ = 12607206133212. Its totient is φ = 8404804088800.

The previous prime is 10506005110921. The next prime is 10506005111027. The reversal of 10506005111005 is 50011150060501.

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 7889239470841 + 2616765640164 = 2808779^2 + 1617642^2 .

It is not a de Polignac number, because 10506005111005 - 2¹⁷ = 10506004979933 is a prime.

It is a super-2 number, since 2×10506005111005² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 1050600511096 + ... + 1050600511105.

It is an arithmetic number, because the mean of its divisors is an integer number (3151801533303).

Almost surely, 2^{10506005111005} is an apocalyptic number.

It is an amenable number.

10506005111005 is a deficient number, since it is larger than the sum of its proper divisors (2101201022207).

10506005111005 is an equidigital number, since it uses as much as digits as its factorization.

10506005111005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101201022206.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 10506005111005 its reverse (50011150060501), we get a palindrome (60517155171506).

The spelling of 10506005111005 in words is "ten trillion, five hundred six billion, five million, one hundred eleven thousand, five".