10666378 has 8 divisors (see below), whose sum is σ = 16940772. Its totient is φ = 5019456.

The previous prime is 10666309. The next prime is 10666379. The reversal of 10666378 is 87366601.

It can be written as a sum of positive squares in 2 ways, for example, as 10093329 + 573049 = 3177^2 + 757^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10666378² = 227543239277768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10666379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156825 + ... + 156892.

Almost surely, 2^10666378 is an apocalyptic number.

10666378 is a deficient number, since it is larger than the sum of its proper divisors (6274394).

10666378 is a wasteful number, since it uses less digits than its factorization.

10666378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313736.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 10666378 is about 3265.9421305345. The cubic root of 10666378 is about 220.1264974994.

The spelling of 10666378 in words is "ten million, six hundred sixty-six thousand, three hundred seventy-eight".