20205045716 has 6 divisors (see below), whose sum is σ = 35358830010. Its totient is φ = 10102522856.

The previous prime is 20205045709. The next prime is 20205045733. The reversal of 20205045716 is 61754050202.

It can be written as a sum of positive squares in only one way, i.e., 13795442116 + 6409603600 = 117454^2 + 80060^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525630711 + ... + 2525630718.

It is an arithmetic number, because the mean of its divisors is an integer number (5893138335).

Almost surely, 2^20205045716 is an apocalyptic number.

It is an amenable number.

20205045716 is a deficient number, since it is larger than the sum of its proper divisors (15153784294).

20205045716 is a wasteful number, since it uses less digits than its factorization.

20205045716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051261433 (or 5051261431 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 20205045716 its reverse (61754050202), we get a palindrome (81959095918).

The spelling of 20205045716 in words is "twenty billion, two hundred five million, forty-five thousand, seven hundred sixteen".