20562021668119 has 2 divisors, whose sum is σ = 20562021668120. Its totient is φ = 20562021668118.

The previous prime is 20562021668101. The next prime is 20562021668179. The reversal of 20562021668119 is 91186612026502.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20562021668119 is a prime.

It is a super-2 number, since 2×20562021668119² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20562021668179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10281010834059 + 10281010834060.

It is an arithmetic number, because the mean of its divisors is an integer number (10281010834060).

Almost surely, 2^{20562021668119} is an apocalyptic number.

20562021668119 is a deficient number, since it is larger than the sum of its proper divisors (1).

20562021668119 is an equidigital number, since it uses as much as digits as its factorization.

20562021668119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 20562021668119 in words is "twenty trillion, five hundred sixty-two billion, twenty-one million, six hundred sixty-eight thousand, one hundred nineteen".