20026560601 has 4 divisors (see below), whose sum is σ = 20026873012. Its totient is φ = 20026248192.

The previous prime is 20026560583. The next prime is 20026560611. The reversal of 20026560601 is 10606562002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10606562002 = 2 ⋅5303281001.

It can be written as a sum of positive squares in 2 ways, for example, as 8041784976 + 11984775625 = 89676^2 + 109475^2 .

It is a cyclic number.

It is not a de Polignac number, because 20026560601 - 2⁹ = 20026560089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20026560601.

It is not an unprimeable number, because it can be changed into a prime (20026560611) 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, 21096 + ... + 201241.

It is an arithmetic number, because the mean of its divisors is an integer number (5006718253).

Almost surely, 2^20026560601 is an apocalyptic number.

It is an amenable number.

20026560601 is a deficient number, since it is larger than the sum of its proper divisors (312411).

20026560601 is an equidigital number, since it uses as much as digits as its factorization.

20026560601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312410.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 20026560601 in words is "twenty billion, twenty-six million, five hundred sixty thousand, six hundred one".