14001666 has 32 divisors (see below), whose sum is σ = 32123520. Its totient is φ = 3985536.

The previous prime is 14001661. The next prime is 14001667. The reversal of 14001666 is 66610041.

It is not an unprimeable number, because it can be changed into a prime (14001661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15910 + ... + 16766.

It is an arithmetic number, because the mean of its divisors is an integer number (1003860).

Almost surely, 2^14001666 is an apocalyptic number.

14001666 is an abundant number, since it is smaller than the sum of its proper divisors (18121854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14001666 is a wasteful number, since it uses less digits than its factorization.

14001666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 14001666 is about 3741.8800087656. The cubic root of 14001666 is about 241.0237862693.

The spelling of 14001666 in words is "fourteen million, one thousand, six hundred sixty-six".