20116112004409 has 2 divisors, whose sum is σ = 20116112004410. Its totient is φ = 20116112004408.

The previous prime is 20116112004341. The next prime is 20116112004413. The reversal of 20116112004409 is 90440021161102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19647233550400 + 468878454009 = 4432520^2 + 684747^2 .

It is a cyclic number.

It is not a de Polignac number, because 20116112004409 - 2³⁵ = 20081752266041 is a prime.

It is not a weakly prime, because it can be changed into another prime (20116112004479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058056002204 + 10058056002205.

It is an arithmetic number, because the mean of its divisors is an integer number (10058056002205).

Almost surely, 2^{20116112004409} is an apocalyptic number.

It is an amenable number.

20116112004409 is a deficient number, since it is larger than the sum of its proper divisors (1).

20116112004409 is an equidigital number, since it uses as much as digits as its factorization.

20116112004409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 20116112004409 in words is "twenty trillion, one hundred sixteen billion, one hundred twelve million, four thousand, four hundred nine".