53660141809 has 2 divisors, whose sum is σ = 53660141810. Its totient is φ = 53660141808.

The previous prime is 53660141807. The next prime is 53660141849. The reversal of 53660141809 is 90814106635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43752925584 + 9907216225 = 209172^2 + 99535^2 .

It is a cyclic number.

It is not a de Polignac number, because 53660141809 - 2¹ = 53660141807 is a prime.

Together with 53660141807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53660141803) 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, 26830070904 + 26830070905.

It is an arithmetic number, because the mean of its divisors is an integer number (26830070905).

Almost surely, 2^53660141809 is an apocalyptic number.

It is an amenable number.

53660141809 is a deficient number, since it is larger than the sum of its proper divisors (1).

53660141809 is an equidigital number, since it uses as much as digits as its factorization.

53660141809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 53660141809 in words is "fifty-three billion, six hundred sixty million, one hundred forty-one thousand, eight hundred nine".