106005550605505 has 4 divisors (see below), whose sum is σ = 127206660726612. Its totient is φ = 84804440484400.

The previous prime is 106005550605503. The next prime is 106005550605533. The reversal of 106005550605505 is 505506055500601.

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 61440326438544 + 44565224166961 = 7838388^2 + 6675719^2 .

It is not a de Polignac number, because 106005550605505 - 2¹ = 106005550605503 is a prime.

It is a super-2 number, since 2×106005550605505² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106005550605503) 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, 10600555060546 + ... + 10600555060555.

It is an arithmetic number, because the mean of its divisors is an integer number (31801665181653).

Almost surely, 2^{106005550605505} is an apocalyptic number.

It is an amenable number.

106005550605505 is a deficient number, since it is larger than the sum of its proper divisors (21201110121107).

106005550605505 is an equidigital number, since it uses as much as digits as its factorization.

106005550605505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21201110121106.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 106005550605505 in words is "one hundred six trillion, five billion, five hundred fifty million, six hundred five thousand, five hundred five".