16211266 has 4 divisors (see below), whose sum is σ = 24316902. Its totient is φ = 8105632.

The previous prime is 16211263. The next prime is 16211267. The reversal of 16211266 is 66211261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66211261 = 293 ⋅225977.

It can be written as a sum of positive squares in only one way, i.e., 14661241 + 1550025 = 3829^2 + 1245^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16211266.

It is not an unprimeable number, because it can be changed into a prime (16211263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4052815 + ... + 4052818.

Almost surely, 2^16211266 is an apocalyptic number.

16211266 is a deficient number, since it is larger than the sum of its proper divisors (8105636).

16211266 is an equidigital number, since it uses as much as digits as its factorization.

16211266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8105635.

The product of its digits is 864, while the sum is 25.

The square root of 16211266 is about 4026.3216463666. The cubic root of 16211266 is about 253.0884410138.

The spelling of 16211266 in words is "sixteen million, two hundred eleven thousand, two hundred sixty-six".