16266161 has 8 divisors (see below), whose sum is σ = 17291880. Its totient is φ = 15248128.

The previous prime is 16266149. The next prime is 16266167. The reversal of 16266161 is 16166261.

It can be written as a sum of positive squares in 4 ways, for example, as 65536 + 16200625 = 256^2 + 4025^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16266161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16266167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2795 + ... + 6351.

It is an arithmetic number, because the mean of its divisors is an integer number (2161485).

Almost surely, 2^16266161 is an apocalyptic number.

It is an amenable number.

16266161 is a deficient number, since it is larger than the sum of its proper divisors (1025719).

16266161 is a wasteful number, since it uses less digits than its factorization.

16266161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3843.

The product of its digits is 2592, while the sum is 29.

The square root of 16266161 is about 4033.1329013560. The cubic root of 16266161 is about 253.3737906685.

The spelling of 16266161 in words is "sixteen million, two hundred sixty-six thousand, one hundred sixty-one".