105345266645 has 4 divisors (see below), whose sum is σ = 126414319980. Its totient is φ = 84276213312.

The previous prime is 105345266641. The next prime is 105345266651. The reversal of 105345266645 is 546662543501.

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 34865105284 + 70480161361 = 186722^2 + 265481^2 .

It is a cyclic number.

It is not a de Polignac number, because 105345266645 - 2² = 105345266641 is a prime.

It is a super-2 number, since 2×105345266645² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105345266645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105345266641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10534526660 + ... + 10534526669.

It is an arithmetic number, because the mean of its divisors is an integer number (31603579995).

Almost surely, 2^105345266645 is an apocalyptic number.

It is an amenable number.

105345266645 is a deficient number, since it is larger than the sum of its proper divisors (21069053335).

105345266645 is an equidigital number, since it uses as much as digits as its factorization.

105345266645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21069053334.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 105345266645 in words is "one hundred five billion, three hundred forty-five million, two hundred sixty-six thousand, six hundred forty-five".