20575561327179 has 8 divisors (see below), whose sum is σ = 27434608069440. Its totient is φ = 13716777734856.

The previous prime is 20575561327133. The next prime is 20575561327193. The reversal of 20575561327179 is 97172316557502.

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

It is not a de Polignac number, because 20575561327179 - 2⁷ = 20575561327051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20575561327129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65604969 + ... + 65917850.

It is an arithmetic number, because the mean of its divisors is an integer number (3429326008680).

Almost surely, 2^{20575561327179} is an apocalyptic number.

20575561327179 is a deficient number, since it is larger than the sum of its proper divisors (6859046742261).

20575561327179 is a wasteful number, since it uses less digits than its factorization.

20575561327179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131574969.

The product of its (nonzero) digits is 27783000, while the sum is 60.

The spelling of 20575561327179 in words is "twenty trillion, five hundred seventy-five billion, five hundred sixty-one million, three hundred twenty-seven thousand, one hundred seventy-nine".