20563467213927 has 16 divisors (see below), whose sum is σ = 29926433123712. Its totient is φ = 12456067669920.

The previous prime is 20563467213923. The next prime is 20563467214009. The reversal of 20563467213927 is 72931276436502.

It is not a de Polignac number, because 20563467213927 - 2² = 20563467213923 is a prime.

It is a super-2 number, since 2×20563467213927² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20563467213923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165930433 + ... + 166054314.

It is an arithmetic number, because the mean of its divisors is an integer number (1870402070232).

Almost surely, 2^{20563467213927} is an apocalyptic number.

20563467213927 is a deficient number, since it is larger than the sum of its proper divisors (9362965909785).

20563467213927 is a wasteful number, since it uses less digits than its factorization.

20563467213927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331986638.

The product of its (nonzero) digits is 22861440, while the sum is 57.

The spelling of 20563467213927 in words is "twenty trillion, five hundred sixty-three billion, four hundred sixty-seven million, two hundred thirteen thousand, nine hundred twenty-seven".