105563145635 has 4 divisors (see below), whose sum is σ = 126675774768. Its totient is φ = 84450516504.

The previous prime is 105563145613. The next prime is 105563145637. The reversal of 105563145635 is 536541365501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105563145635 - 2²⁰ = 105562097059 is a prime.

It is a super-2 number, since 2×105563145635² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105563145637) 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, 10556314559 + ... + 10556314568.

It is an arithmetic number, because the mean of its divisors is an integer number (31668943692).

Almost surely, 2^105563145635 is an apocalyptic number.

105563145635 is a deficient number, since it is larger than the sum of its proper divisors (21112629133).

105563145635 is an equidigital number, since it uses as much as digits as its factorization.

105563145635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21112629132.

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 105563145635 in words is "one hundred five billion, five hundred sixty-three million, one hundred forty-five thousand, six hundred thirty-five".