105561103913869 has 4 divisors (see below), whose sum is σ = 105561387882496. Its totient is φ = 105560819945244.

The previous prime is 105561103913813. The next prime is 105561103913953. The reversal of 105561103913869 is 968319301165501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105561103913869 - 2²⁷ = 105560969696141 is a prime.

It is a super-2 number, since 2×105561103913869² (a number of 29 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 (105561103953869) 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, 141425979 + ... + 142170424.

It is an arithmetic number, because the mean of its divisors is an integer number (26390346970624).

Almost surely, 2^{105561103913869} is an apocalyptic number.

It is an amenable number.

105561103913869 is a deficient number, since it is larger than the sum of its proper divisors (283968627).

105561103913869 is an equidigital number, since it uses as much as digits as its factorization.

105561103913869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283968626.

The product of its (nonzero) digits is 5248800, while the sum is 58.

The spelling of 105561103913869 in words is "one hundred five trillion, five hundred sixty-one billion, one hundred three million, nine hundred thirteen thousand, eight hundred sixty-nine".