20666104301 has 4 divisors (see below), whose sum is σ = 20666618112. Its totient is φ = 20665590492.

The previous prime is 20666104297. The next prime is 20666104367. The reversal of 20666104301 is 10340166602.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20666104301 - 2² = 20666104297 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20666104201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190925 + ... + 278898.

It is an arithmetic number, because the mean of its divisors is an integer number (5166654528).

Almost surely, 2^20666104301 is an apocalyptic number.

It is an amenable number.

20666104301 is a deficient number, since it is larger than the sum of its proper divisors (513811).

20666104301 is an equidigital number, since it uses as much as digits as its factorization.

20666104301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513810.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 20666104301 in words is "twenty billion, six hundred sixty-six million, one hundred four thousand, three hundred one".