105550101061 has 4 divisors (see below), whose sum is σ = 105670455532. Its totient is φ = 105429746592.

The previous prime is 105550101023. The next prime is 105550101077. The reversal of 105550101061 is 160101055501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160101055501 = 208657 ⋅767293.

It can be written as a sum of positive squares in 2 ways, for example, as 47772844900 + 57777256161 = 218570^2 + 240369^2 .

It is a cyclic number.

It is not a de Polignac number, because 105550101061 - 2¹¹ = 105550099013 is a prime.

It is a super-2 number, since 2×105550101061² (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 (105550101001) 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, 60175920 + ... + 60177673.

It is an arithmetic number, because the mean of its divisors is an integer number (26417613883).

Almost surely, 2^105550101061 is an apocalyptic number.

It is an amenable number.

105550101061 is a deficient number, since it is larger than the sum of its proper divisors (120354471).

105550101061 is an equidigital number, since it uses as much as digits as its factorization.

105550101061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120354470.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 105550101061 its reverse (160101055501), we get a palindrome (265651156562).

The spelling of 105550101061 in words is "one hundred five billion, five hundred fifty million, one hundred one thousand, sixty-one".