603446116561 has 2 divisors, whose sum is σ = 603446116562. Its totient is φ = 603446116560.

The previous prime is 603446116549. The next prime is 603446116577. The reversal of 603446116561 is 165611644306.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341793406161 + 261652710400 = 584631^2 + 511520^2 .

It is a cyclic number.

It is not a de Polignac number, because 603446116561 - 2²³ = 603437727953 is a prime.

It is not a weakly prime, because it can be changed into another prime (603446116261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301723058280 + 301723058281.

It is an arithmetic number, because the mean of its divisors is an integer number (301723058281).

Almost surely, 2^603446116561 is an apocalyptic number.

It is an amenable number.

603446116561 is a deficient number, since it is larger than the sum of its proper divisors (1).

603446116561 is an equidigital number, since it uses as much as digits as its factorization.

603446116561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 603446116561 in words is "six hundred three billion, four hundred forty-six million, one hundred sixteen thousand, five hundred sixty-one".