20612711053189 has 2 divisors, whose sum is σ = 20612711053190. Its totient is φ = 20612711053188.

The previous prime is 20612711053183. The next prime is 20612711053201. The reversal of 20612711053189 is 98135011721602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20612054002500 + 657050689 = 4540050^2 + 25633^2 .

It is a cyclic number.

It is not a de Polignac number, because 20612711053189 - 2²³ = 20612702664581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20612711053183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10306355526594 + 10306355526595.

It is an arithmetic number, because the mean of its divisors is an integer number (10306355526595).

Almost surely, 2^{20612711053189} is an apocalyptic number.

It is an amenable number.

20612711053189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20612711053189 is an equidigital number, since it uses as much as digits as its factorization.

20612711053189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 20612711053189 in words is "twenty trillion, six hundred twelve billion, seven hundred eleven million, fifty-three thousand, one hundred eighty-nine".