10661266 has 32 divisors (see below), whose sum is σ = 20155392. Its totient is φ = 4108560.

The previous prime is 10661263. The next prime is 10661279. The reversal of 10661266 is 66216601.

It is a super-2 number, since 2×10661266² = 227325185445512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10661263) by changing a digit.

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, 16155 + ... + 16801.

It is an arithmetic number, because the mean of its divisors is an integer number (629856).

Almost surely, 2^10661266 is an apocalyptic number.

10661266 is a deficient number, since it is larger than the sum of its proper divisors (9494126).

10661266 is a wasteful number, since it uses less digits than its factorization.

10661266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 10661266 is about 3265.1594141787. The cubic root of 10661266 is about 220.0913257203.

Adding to 10661266 its reverse (66216601), we get a palindrome (76877867).

It can be divided in two parts, 1066 and 1266, that added together give a palindrome (2332).

The spelling of 10661266 in words is "ten million, six hundred sixty-one thousand, two hundred sixty-six".