20269554167111 has 2 divisors, whose sum is σ = 20269554167112. Its totient is φ = 20269554167110.

The previous prime is 20269554167099. The next prime is 20269554167129. The reversal of 20269554167111 is 11176145596202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20269554167111 - 2⁴² = 15871507656007 is a prime.

It is a super-2 number, since 2×20269554167111² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20269554167111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20269554167141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10134777083555 + 10134777083556.

It is an arithmetic number, because the mean of its divisors is an integer number (10134777083556).

Almost surely, 2^{20269554167111} is an apocalyptic number.

20269554167111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20269554167111 is an equidigital number, since it uses as much as digits as its factorization.

20269554167111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 50.

The spelling of 20269554167111 in words is "twenty trillion, two hundred sixty-nine billion, five hundred fifty-four million, one hundred sixty-seven thousand, one hundred eleven".