13666010 has 8 divisors (see below), whose sum is σ = 24598836. Its totient is φ = 5466400.

The previous prime is 13665991. The next prime is 13666019. The reversal of 13666010 is 1066631.

It can be written as a sum of positive squares in 2 ways, for example, as 13388281 + 277729 = 3659^2 + 527^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13666019) 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 3 ways as a sum of consecutive naturals, for example, 683291 + ... + 683310.

Almost surely, 2^13666010 is an apocalyptic number.

13666010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13666010 is a deficient number, since it is larger than the sum of its proper divisors (10932826).

13666010 is a wasteful number, since it uses less digits than its factorization.

13666010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366608.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13666010 is about 3696.7566866106. The cubic root of 13666010 is about 239.0822006776.

The spelling of 13666010 in words is "thirteen million, six hundred sixty-six thousand, ten".