20600434615609 has 2 divisors, whose sum is σ = 20600434615610. Its totient is φ = 20600434615608.

The previous prime is 20600434615577. The next prime is 20600434615643. The reversal of 20600434615609 is 90651643400602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14398078470400 + 6202356145209 = 3794480^2 + 2490453^2 .

It is a cyclic number.

It is not a de Polignac number, because 20600434615609 - 2⁵ = 20600434615577 is a prime.

It is not a weakly prime, because it can be changed into another prime (20600434612609) 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, 10300217307804 + 10300217307805.

It is an arithmetic number, because the mean of its divisors is an integer number (10300217307805).

Almost surely, 2^{20600434615609} is an apocalyptic number.

It is an amenable number.

20600434615609 is a deficient number, since it is larger than the sum of its proper divisors (1).

20600434615609 is an equidigital number, since it uses as much as digits as its factorization.

20600434615609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 20600434615609 in words is "twenty trillion, six hundred billion, four hundred thirty-four million, six hundred fifteen thousand, six hundred nine".