16801266 has 32 divisors (see below), whose sum is σ = 34997760. Its totient is φ = 5370624.

The previous prime is 16801243. The next prime is 16801277. The reversal of 16801266 is 66210861.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38586 + ... + 39018.

It is an arithmetic number, because the mean of its divisors is an integer number (1093680).

Almost surely, 2^16801266 is an apocalyptic number.

16801266 is an abundant number, since it is smaller than the sum of its proper divisors (18196494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16801266 is a wasteful number, since it uses less digits than its factorization.

16801266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 16801266 is about 4098.9347396610. The cubic root of 16801266 is about 256.1222662217.

The spelling of 16801266 in words is "sixteen million, eight hundred one thousand, two hundred sixty-six".