16205755105 has 8 divisors (see below), whose sum is σ = 19559317032. Its totient is φ = 12889663488.

The previous prime is 16205755091. The next prime is 16205755109. The reversal of 16205755105 is 50155750261.

16205755105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 733380561 + 15472374544 = 27081^2 + 124388^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16205755105 - 2⁵ = 16205755073 is a prime.

It is a super-2 number, since 2×16205755105² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16205755109) 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 7 ways as a sum of consecutive naturals, for example, 9366624 + ... + 9368353.

It is an arithmetic number, because the mean of its divisors is an integer number (2444914629).

Almost surely, 2^16205755105 is an apocalyptic number.

It is an amenable number.

16205755105 is a deficient number, since it is larger than the sum of its proper divisors (3353561927).

16205755105 is a wasteful number, since it uses less digits than its factorization.

16205755105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18735155.

The product of its (nonzero) digits is 52500, while the sum is 37.

The spelling of 16205755105 in words is "sixteen billion, two hundred five million, seven hundred fifty-five thousand, one hundred five".