105563553511 has 4 divisors (see below), whose sum is σ = 113683826872. Its totient is φ = 97443280152.

The previous prime is 105563553493. The next prime is 105563553553. The reversal of 105563553511 is 115355365501.

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 105563553511 - 2⁷ = 105563553383 is a prime.

It is a super-2 number, since 2×105563553511² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105563559511) 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, 4060136661 + ... + 4060136686.

It is an arithmetic number, because the mean of its divisors is an integer number (28420956718).

Almost surely, 2^105563553511 is an apocalyptic number.

105563553511 is a deficient number, since it is larger than the sum of its proper divisors (8120273361).

105563553511 is an equidigital number, since it uses as much as digits as its factorization.

105563553511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8120273360.

The product of its (nonzero) digits is 168750, while the sum is 40.

The spelling of 105563553511 in words is "one hundred five billion, five hundred sixty-three million, five hundred fifty-three thousand, five hundred eleven".