556129616839 has 2 divisors, whose sum is σ = 556129616840. Its totient is φ = 556129616838.

The previous prime is 556129616797. The next prime is 556129616869. The reversal of 556129616839 is 938616921655.

556129616839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556129616839 - 2²⁷ = 555995399111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556129616869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278064808419 + 278064808420.

It is an arithmetic number, because the mean of its divisors is an integer number (278064808420).

Almost surely, 2^556129616839 is an apocalyptic number.

556129616839 is a deficient number, since it is larger than the sum of its proper divisors (1).

556129616839 is an equidigital number, since it uses as much as digits as its factorization.

556129616839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20995200, while the sum is 61.

The spelling of 556129616839 in words is "five hundred fifty-six billion, one hundred twenty-nine million, six hundred sixteen thousand, eight hundred thirty-nine".