556116611 has 2 divisors, whose sum is σ = 556116612. Its totient is φ = 556116610.

The previous prime is 556116607. The next prime is 556116641. The reversal of 556116611 is 116611655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556116611 - 2² = 556116607 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (556116601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278058305 + 278058306.

It is an arithmetic number, because the mean of its divisors is an integer number (278058306).

Almost surely, 2^556116611 is an apocalyptic number.

556116611 is a deficient number, since it is larger than the sum of its proper divisors (1).

556116611 is an equidigital number, since it uses as much as digits as its factorization.

556116611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 32.

The square root of 556116611 is about 23582.1248194475. The cubic root of 556116611 is about 822.3473346794.

The spelling of 556116611 in words is "five hundred fifty-six million, one hundred sixteen thousand, six hundred eleven".