20106325563 has 8 divisors (see below), whose sum is σ = 26809882176. Its totient is φ = 13403493000.

The previous prime is 20106325517. The next prime is 20106325573. The reversal of 20106325563 is 36552360102.

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

It is not a de Polignac number, because 20106325563 - 2³² = 15811358267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20106325573) 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, 112513 + ... + 229938.

It is an arithmetic number, because the mean of its divisors is an integer number (3351235272).

Almost surely, 2^20106325563 is an apocalyptic number.

20106325563 is a deficient number, since it is larger than the sum of its proper divisors (6703556613).

20106325563 is a wasteful number, since it uses less digits than its factorization.

20106325563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362025.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 20106325563 its reverse (36552360102), we get a palindrome (56658685665).

The spelling of 20106325563 in words is "twenty billion, one hundred six million, three hundred twenty-five thousand, five hundred sixty-three".