10666855 has 8 divisors (see below), whose sum is σ = 12837312. Its totient is φ = 8508768.

The previous prime is 10666853. The next prime is 10666879. The reversal of 10666855 is 55866601.

10666855 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 10666855 - 2¹ = 10666853 is a prime.

It is a super-2 number, since 2×10666855² = 227563591182050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10666853) 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, 1072 + ... + 4741.

It is an arithmetic number, because the mean of its divisors is an integer number (1604664).

Almost surely, 2^10666855 is an apocalyptic number.

10666855 is a deficient number, since it is larger than the sum of its proper divisors (2170457).

10666855 is an equidigital number, since it uses as much as digits as its factorization.

10666855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 10666855 is about 3266.0151561192. The cubic root of 10666855 is about 220.1297787999.

It can be divided in two parts, 1066 and 6855, that added together give a square (7921 = 89²).

The spelling of 10666855 in words is "ten million, six hundred sixty-six thousand, eight hundred fifty-five".