20011111199159 has 2 divisors, whose sum is σ = 20011111199160. Its totient is φ = 20011111199158.

The previous prime is 20011111199143. The next prime is 20011111199197. The reversal of 20011111199159 is 95199111111002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20011111199159 - 2⁴ = 20011111199143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011111199459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005555599579 + 10005555599580.

It is an arithmetic number, because the mean of its divisors is an integer number (10005555599580).

Almost surely, 2^{20011111199159} is an apocalyptic number.

20011111199159 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011111199159 is an equidigital number, since it uses as much as digits as its factorization.

20011111199159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 41.

The spelling of 20011111199159 in words is "twenty trillion, eleven billion, one hundred eleven million, one hundred ninety-nine thousand, one hundred fifty-nine".