10666266 has 48 divisors (see below), whose sum is σ = 23593824. Its totient is φ = 3212352.

The previous prime is 10666241. The next prime is 10666297. The reversal of 10666266 is 66266601.

It is a super-2 number, since 2×10666266² = 227538460765512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67860 + ... + 68016.

It is an arithmetic number, because the mean of its divisors is an integer number (491538).

Almost surely, 2^10666266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10666266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11796912).

10666266 is an abundant number, since it is smaller than the sum of its proper divisors (12927558).

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

10666266 is a wasteful number, since it uses less digits than its factorization.

10666266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 10666266 is about 3265.9249838292. The cubic root of 10666266 is about 220.1257270331.

Multiplying 10666266 by its sum of digits (33), we get a triangular number (351986778 = T₂₆₅₃₂).

The spelling of 10666266 in words is "ten million, six hundred sixty-six thousand, two hundred sixty-six".