20016261825073 has 2 divisors, whose sum is σ = 20016261825074. Its totient is φ = 20016261825072.

The previous prime is 20016261825067. The next prime is 20016261825121. The reversal of 20016261825073 is 37052816261002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17600777027584 + 2415484797489 = 4195328^2 + 1554183^2 .

It is a cyclic number.

It is not a de Polignac number, because 20016261825073 - 2⁵ = 20016261825041 is a prime.

It is not a weakly prime, because it can be changed into another prime (20016261825023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10008130912536 + 10008130912537.

It is an arithmetic number, because the mean of its divisors is an integer number (10008130912537).

Almost surely, 2^{20016261825073} is an apocalyptic number.

It is an amenable number.

20016261825073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20016261825073 is an equidigital number, since it uses as much as digits as its factorization.

20016261825073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 20016261825073 in words is "twenty trillion, sixteen billion, two hundred sixty-one million, eight hundred twenty-five thousand, seventy-three".