10691266 has 24 divisors (see below), whose sum is σ = 17406900. Its totient is φ = 4922112.

The previous prime is 10691237. The next prime is 10691267. The reversal of 10691266 is 66219601.

It can be written as a sum of positive squares in 6 ways, for example, as 10017225 + 674041 = 3165^2 + 821^2 .

It is a super-2 number, since 2×10691266² = 228606337365512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10691267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30460 + ... + 30808.

Almost surely, 2^10691266 is an apocalyptic number.

10691266 is a deficient number, since it is larger than the sum of its proper divisors (6715634).

10691266 is a wasteful number, since it uses less digits than its factorization.

10691266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 10691266 is about 3269.7501433596. The cubic root of 10691266 is about 220.2975725278.

The spelling of 10691266 in words is "ten million, six hundred ninety-one thousand, two hundred sixty-six".