556655164309 has 2 divisors, whose sum is σ = 556655164310. Its totient is φ = 556655164308.

The previous prime is 556655164301. The next prime is 556655164367. The reversal of 556655164309 is 903461556655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400811811409 + 155843352900 = 633097^2 + 394770^2 .

It is a cyclic number.

It is not a de Polignac number, because 556655164309 - 2³ = 556655164301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556655164309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556655164301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278327582154 + 278327582155.

It is an arithmetic number, because the mean of its divisors is an integer number (278327582155).

Almost surely, 2^556655164309 is an apocalyptic number.

It is an amenable number.

556655164309 is a deficient number, since it is larger than the sum of its proper divisors (1).

556655164309 is an equidigital number, since it uses as much as digits as its factorization.

556655164309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580000, while the sum is 55.

The spelling of 556655164309 in words is "five hundred fifty-six billion, six hundred fifty-five million, one hundred sixty-four thousand, three hundred nine".