557433366649 has 2 divisors, whose sum is σ = 557433366650. Its totient is φ = 557433366648.

The previous prime is 557433366619. The next prime is 557433366661. The reversal of 557433366649 is 946663334755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 447235925049 + 110197441600 = 668757^2 + 331960^2 .

It is a cyclic number.

It is not a de Polignac number, because 557433366649 - 2¹⁹ = 557432842361 is a prime.

It is not a weakly prime, because it can be changed into another prime (557433366619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278716683324 + 278716683325.

It is an arithmetic number, because the mean of its divisors is an integer number (278716683325).

Almost surely, 2^557433366649 is an apocalyptic number.

It is an amenable number.

557433366649 is a deficient number, since it is larger than the sum of its proper divisors (1).

557433366649 is an equidigital number, since it uses as much as digits as its factorization.

557433366649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 146966400, while the sum is 61.

The spelling of 557433366649 in words is "five hundred fifty-seven billion, four hundred thirty-three million, three hundred sixty-six thousand, six hundred forty-nine".