6605207509973 has 2 divisors, whose sum is σ = 6605207509974. Its totient is φ = 6605207509972.

The previous prime is 6605207509949. The next prime is 6605207510017. The reversal of 6605207509973 is 3799057025066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4317182195089 + 2288025314884 = 2077783^2 + 1512622^2 .

It is a cyclic number.

It is not a de Polignac number, because 6605207509973 - 2²⁴ = 6605190732757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6605207509903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3302603754986 + 3302603754987.

It is an arithmetic number, because the mean of its divisors is an integer number (3302603754987).

Almost surely, 2^{6605207509973} is an apocalyptic number.

It is an amenable number.

6605207509973 is a deficient number, since it is larger than the sum of its proper divisors (1).

6605207509973 is an equidigital number, since it uses as much as digits as its factorization.

6605207509973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21432600, while the sum is 59.

The spelling of 6605207509973 in words is "six trillion, six hundred five billion, two hundred seven million, five hundred nine thousand, nine hundred seventy-three".