549253646320177 has 2 divisors, whose sum is σ = 549253646320178. Its totient is φ = 549253646320176.

The previous prime is 549253646320157. The next prime is 549253646320207. The reversal of 549253646320177 is 771023646352945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413747493734656 + 135506152585521 = 20340784^2 + 11640711^2 .

It is a cyclic number.

It is not a de Polignac number, because 549253646320177 - 2²³ = 549253637931569 is a prime.

It is a super-2 number, since 2×549253646320177² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (549253646320157) 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, 274626823160088 + 274626823160089.

It is an arithmetic number, because the mean of its divisors is an integer number (274626823160089).

Almost surely, 2^{549253646320177} is an apocalyptic number.

It is an amenable number.

549253646320177 is a deficient number, since it is larger than the sum of its proper divisors (1).

549253646320177 is an equidigital number, since it uses as much as digits as its factorization.

549253646320177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 228614400, while the sum is 64.

The spelling of 549253646320177 in words is "five hundred forty-nine trillion, two hundred fifty-three billion, six hundred forty-six million, three hundred twenty thousand, one hundred seventy-seven".