16580101 has 2 divisors, whose sum is σ = 16580102. Its totient is φ = 16580100.

The previous prime is 16580093. The next prime is 16580119. The reversal of 16580101 is 10108561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13068225 + 3511876 = 3615^2 + 1874^2 .

It is a cyclic number.

It is not a de Polignac number, because 16580101 - 2³ = 16580093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16580131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8290050 + 8290051.

It is an arithmetic number, because the mean of its divisors is an integer number (8290051).

Almost surely, 2^16580101 is an apocalyptic number.

It is an amenable number.

16580101 is a deficient number, since it is larger than the sum of its proper divisors (1).

16580101 is an equidigital number, since it uses as much as digits as its factorization.

16580101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 16580101 is about 4071.8670164926. The cubic root of 16580101 is about 254.9934690113.

Adding to 16580101 its reverse (10108561), we get a palindrome (26688662).

The spelling of 16580101 in words is "sixteen million, five hundred eighty thousand, one hundred one".