20116226206705 has 8 divisors (see below), whose sum is σ = 24971867015400. Its totient is φ = 15538050587136.

The previous prime is 20116226206651. The next prime is 20116226206711. The reversal of 20116226206705 is 50760262261102.

It can be written as a sum of positive squares in 4 ways, for example, as 20452432144 + 20095773774561 = 143012^2 + 4482831^2 .

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 20116226206705 - 2⁷ = 20116226206577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69366297120 + ... + 69366297409.

It is an arithmetic number, because the mean of its divisors is an integer number (3121483376925).

Almost surely, 2^{20116226206705} is an apocalyptic number.

It is an amenable number.

20116226206705 is a deficient number, since it is larger than the sum of its proper divisors (4855640808695).

20116226206705 is a wasteful number, since it uses less digits than its factorization.

20116226206705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138732594563.

The product of its (nonzero) digits is 120960, while the sum is 40.

Adding to 20116226206705 its reverse (50760262261102), we get a palindrome (70876488467807).

The spelling of 20116226206705 in words is "twenty trillion, one hundred sixteen billion, two hundred twenty-six million, two hundred six thousand, seven hundred five".