105620412005 has 4 divisors (see below), whose sum is σ = 126744494412. Its totient is φ = 84496329600.

The previous prime is 105620411999. The next prime is 105620412013. The reversal of 105620412005 is 500214026501.

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 19523355076 + 86097056929 = 139726^2 + 293423^2 .

It is not a de Polignac number, because 105620412005 - 2²⁰ = 105619363429 is a prime.

It is a super-2 number, since 2×105620412005² (a number of 23 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, 10562041196 + ... + 10562041205.

It is an arithmetic number, because the mean of its divisors is an integer number (31686123603).

Almost surely, 2^105620412005 is an apocalyptic number.

It is an amenable number.

105620412005 is a deficient number, since it is larger than the sum of its proper divisors (21124082407).

105620412005 is an equidigital number, since it uses as much as digits as its factorization.

105620412005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21124082406.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 105620412005 its reverse (500214026501), we get a palindrome (605834438506).

The spelling of 105620412005 in words is "one hundred five billion, six hundred twenty million, four hundred twelve thousand, five".