20014666 has 8 divisors (see below), whose sum is σ = 34310880. Its totient is φ = 8577708.

The previous prime is 20014639. The next prime is 20014667. The reversal of 20014666 is 66641002.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20014666.

It is not an unprimeable number, because it can be changed into a prime (20014667) 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, 714796 + ... + 714823.

It is an arithmetic number, because the mean of its divisors is an integer number (4288860).

Almost surely, 2^20014666 is an apocalyptic number.

20014666 is a deficient number, since it is larger than the sum of its proper divisors (14296214).

20014666 is a wasteful number, since it uses less digits than its factorization.

20014666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429628.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20014666 is about 4473.7753631581. The cubic root of 20014666 is about 271.5080948627.

Adding to 20014666 its reverse (66641002), we get a palindrome (86655668).

The spelling of 20014666 in words is "twenty million, fourteen thousand, six hundred sixty-six".