20560164045 has 8 divisors (see below), whose sum is σ = 32896262496. Its totient is φ = 10965420816.

The previous prime is 20560164041. The next prime is 20560164061. The reversal of 20560164045 is 54046106502.

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

It is not a de Polignac number, because 20560164045 - 2² = 20560164041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20560163997 and 20560164015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20560164041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685338787 + ... + 685338816.

It is an arithmetic number, because the mean of its divisors is an integer number (4112032812).

Almost surely, 2^20560164045 is an apocalyptic number.

It is an amenable number.

20560164045 is a deficient number, since it is larger than the sum of its proper divisors (12336098451).

20560164045 is a wasteful number, since it uses less digits than its factorization.

20560164045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370677611.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 20560164045 in words is "twenty billion, five hundred sixty million, one hundred sixty-four thousand, forty-five".