16605041 has 4 divisors (see below), whose sum is σ = 17010084. Its totient is φ = 16200000.

The previous prime is 16605037. The next prime is 16605077. The reversal of 16605041 is 14050661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14050661 = 463 ⋅30347.

It can be written as a sum of positive squares in 2 ways, for example, as 6864400 + 9740641 = 2620^2 + 3121^2 .

It is a cyclic number.

It is not a de Polignac number, because 16605041 - 2² = 16605037 is a prime.

It is a super-2 number, since 2×16605041² = 551454773223362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16604998 and 16605016.

It is not an unprimeable number, because it can be changed into a prime (16602041) 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, 202460 + ... + 202541.

It is an arithmetic number, because the mean of its divisors is an integer number (4252521).

Almost surely, 2^16605041 is an apocalyptic number.

It is an amenable number.

16605041 is a deficient number, since it is larger than the sum of its proper divisors (405043).

16605041 is an equidigital number, since it uses as much as digits as its factorization.

16605041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405042.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 16605041 is about 4074.9283429283. The cubic root of 16605041 is about 255.1212597704.

The spelling of 16605041 in words is "sixteen million, six hundred five thousand, forty-one".