16106605 has 4 divisors (see below), whose sum is σ = 19327932. Its totient is φ = 12885280.

The previous prime is 16106579. The next prime is 16106617. The reversal of 16106605 is 50660161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50660161 = 439 ⋅115399.

It can be written as a sum of positive squares in 2 ways, for example, as 6980164 + 9126441 = 2642^2 + 3021^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16106605 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16106605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1610656 + ... + 1610665.

It is an arithmetic number, because the mean of its divisors is an integer number (4831983).

Almost surely, 2^16106605 is an apocalyptic number.

It is an amenable number.

16106605 is a deficient number, since it is larger than the sum of its proper divisors (3221327).

16106605 is an equidigital number, since it uses as much as digits as its factorization.

16106605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221326.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 16106605 is about 4013.3035021040. The cubic root of 16106605 is about 252.5426128127.

Adding to 16106605 its reverse (50660161), we get a palindrome (66766766).

The spelling of 16106605 in words is "sixteen million, one hundred six thousand, six hundred five".