10366681 has 8 divisors (see below), whose sum is σ = 11280584. Its totient is φ = 9469440.

The previous prime is 10366673. The next prime is 10366687. The reversal of 10366681 is 18666301.

It can be written as a sum of positive squares in 4 ways, for example, as 1904400 + 8462281 = 1380^2 + 2909^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 10366681 - 2³ = 10366673 is a prime.

It is a super-2 number, since 2×10366681² = 214936149911522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10366687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2850 + ... + 5371.

It is an arithmetic number, because the mean of its divisors is an integer number (1410073).

Almost surely, 2^10366681 is an apocalyptic number.

It is an amenable number.

10366681 is a deficient number, since it is larger than the sum of its proper divisors (913903).

10366681 is an equidigital number, since it uses as much as digits as its factorization.

10366681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 10366681 is about 3219.7330634697. The cubic root of 10366681 is about 218.0452239033.

The spelling of 10366681 in words is "ten million, three hundred sixty-six thousand, six hundred eighty-one".