676155563 has 2 divisors, whose sum is σ = 676155564. Its totient is φ = 676155562.

The previous prime is 676155523. The next prime is 676155581. The reversal of 676155563 is 365551676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 676155563 - 2⁶ = 676155499 is a prime.

It is not a weakly prime, because it can be changed into another prime (676155523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338077781 + 338077782.

It is an arithmetic number, because the mean of its divisors is an integer number (338077782).

Almost surely, 2^676155563 is an apocalyptic number.

676155563 is a deficient number, since it is larger than the sum of its proper divisors (1).

676155563 is an equidigital number, since it uses as much as digits as its factorization.

676155563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 567000, while the sum is 44.

The square root of 676155563 is about 26002.9914240650. The cubic root of 676155563 is about 877.7056118913.

The spelling of 676155563 in words is "six hundred seventy-six million, one hundred fifty-five thousand, five hundred sixty-three".