20560167730 has 16 divisors (see below), whose sum is σ = 37614996504. Its totient is φ = 8089246080.

The previous prime is 20560167707. The next prime is 20560167739. The reversal of 20560167730 is 3776106502.

It can be written as a sum of positive squares in 4 ways, for example, as 5741244441 + 14818923289 = 75771^2 + 121733^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20560167730.

It is not an unprimeable number, because it can be changed into a prime (20560167739) 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 7 ways as a sum of consecutive naturals, for example, 16851987 + ... + 16853206.

Almost surely, 2^20560167730 is an apocalyptic number.

20560167730 is a deficient number, since it is larger than the sum of its proper divisors (17054828774).

20560167730 is a wasteful number, since it uses less digits than its factorization.

20560167730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33705261.

The product of its (nonzero) digits is 52920, while the sum is 37.

The spelling of 20560167730 in words is "twenty billion, five hundred sixty million, one hundred sixty-seven thousand, seven hundred thirty".