20563042555013 has 8 divisors (see below), whose sum is σ = 24073805918400. Its totient is φ = 17195575655520.

The previous prime is 20563042554991. The next prime is 20563042555021. The reversal of 20563042555013 is 31055524036502.

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

It is a cyclic number.

It is not a de Polignac number, because 20563042555013 - 2¹² = 20563042550917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20563042575013) 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, 35824115663 + ... + 35824116236.

It is an arithmetic number, because the mean of its divisors is an integer number (3009225739800).

Almost surely, 2^{20563042555013} is an apocalyptic number.

It is an amenable number.

20563042555013 is a deficient number, since it is larger than the sum of its proper divisors (3510763363387).

20563042555013 is an equidigital number, since it uses as much as digits as its factorization.

20563042555013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71648231947.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 20563042555013 in words is "twenty trillion, five hundred sixty-three billion, forty-two million, five hundred fifty-five thousand, thirteen".