20551334105 has 8 divisors (see below), whose sum is σ = 24958729152. Its totient is φ = 16242981808.

The previous prime is 20551334099. The next prime is 20551334107. The reversal of 20551334105 is 50143315502.

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

It is not a de Polignac number, because 20551334105 - 2²⁶ = 20484225241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20551334107) 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, 24760229 + ... + 24761058.

It is an arithmetic number, because the mean of its divisors is an integer number (3119841144).

Almost surely, 2^20551334105 is an apocalyptic number.

It is an amenable number.

20551334105 is a deficient number, since it is larger than the sum of its proper divisors (4407395047).

20551334105 is an equidigital number, since it uses as much as digits as its factorization.

20551334105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49521375.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 20551334105 its reverse (50143315502), we get a palindrome (70694649607).

The spelling of 20551334105 in words is "twenty billion, five hundred fifty-one million, three hundred thirty-four thousand, one hundred five".