20566668014 has 8 divisors (see below), whose sum is σ = 30851021880. Its totient is φ = 10282994056.

The previous prime is 20566668013. The next prime is 20566668019. The reversal of 20566668014 is 41086666502.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20566668013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86069 + ... + 220320.

It is an arithmetic number, because the mean of its divisors is an integer number (3856377735).

Almost surely, 2^20566668014 is an apocalyptic number.

20566668014 is a deficient number, since it is larger than the sum of its proper divisors (10284353866).

20566668014 is a wasteful number, since it uses less digits than its factorization.

20566668014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339954.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 20566668014 in words is "twenty billion, five hundred sixty-six million, six hundred sixty-eight thousand, fourteen".