20560711501 has 16 divisors (see below), whose sum is σ = 22749450048. Its totient is φ = 18426832000.

The previous prime is 20560711499. The next prime is 20560711519. The reversal of 20560711501 is 10511706502.

It is a cyclic number.

It is not a de Polignac number, because 20560711501 - 2¹ = 20560711499 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 20560711501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20560711531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219150 + ... + 298576.

It is an arithmetic number, because the mean of its divisors is an integer number (1421840628).

Almost surely, 2^20560711501 is an apocalyptic number.

It is an amenable number.

20560711501 is a deficient number, since it is larger than the sum of its proper divisors (2188738547).

20560711501 is a wasteful number, since it uses less digits than its factorization.

20560711501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79772.

The product of its (nonzero) digits is 2100, while the sum is 28.

It can be divided in two parts, 205 and 60711501, that added together give a palindrome (60711706).

The spelling of 20560711501 in words is "twenty billion, five hundred sixty million, seven hundred eleven thousand, five hundred one".