105605055511069 has 4 divisors (see below), whose sum is σ = 105605422080444. Its totient is φ = 105604688941696.

The previous prime is 105605055511027. The next prime is 105605055511073. The reversal of 105605055511069 is 960115550506501.

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 9207807906969 + 96397247604100 = 3034437^2 + 9818210^2 .

It is a cyclic number.

It is not a de Polignac number, because 105605055511069 - 2¹⁵ = 105605055478301 is a prime.

It is a super-2 number, since 2×105605055511069² (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 (105605055511009) 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, 182852212 + ... + 183428845.

It is an arithmetic number, because the mean of its divisors is an integer number (26401355520111).

Almost surely, 2^{105605055511069} is an apocalyptic number.

It is an amenable number.

105605055511069 is a deficient number, since it is larger than the sum of its proper divisors (366569375).

105605055511069 is an equidigital number, since it uses as much as digits as its factorization.

105605055511069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366569374.

The product of its (nonzero) digits is 1012500, while the sum is 49.

The spelling of 105605055511069 in words is "one hundred five trillion, six hundred five billion, fifty-five million, five hundred eleven thousand, sixty-nine".