20104055611 has 8 divisors (see below), whose sum is σ = 20574466880. Its totient is φ = 19633775112.

The previous prime is 20104055599. The next prime is 20104055627. The reversal of 20104055611 is 11655040102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20104055611 - 2⁹ = 20104055099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20104055651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323116 + ... + 380278.

It is an arithmetic number, because the mean of its divisors is an integer number (2571808360).

Almost surely, 2^20104055611 is an apocalyptic number.

20104055611 is a deficient number, since it is larger than the sum of its proper divisors (470411269).

20104055611 is an equidigital number, since it uses as much as digits as its factorization.

20104055611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65385.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 20104055611 its reverse (11655040102), we get a palindrome (31759095713).

The spelling of 20104055611 in words is "twenty billion, one hundred four million, fifty-five thousand, six hundred eleven".