676155559 has 4 divisors (see below), whose sum is σ = 692647200. Its totient is φ = 659663920.

The previous prime is 676155523. The next prime is 676155563. The reversal of 676155559 is 955551676.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 676155559 - 2²⁷ = 541937831 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676152559) 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 in 3 ways as a sum of consecutive naturals, for example, 8245759 + ... + 8245840.

It is an arithmetic number, because the mean of its divisors is an integer number (173161800).

Almost surely, 2^676155559 is an apocalyptic number.

676155559 is a deficient number, since it is larger than the sum of its proper divisors (16491641).

676155559 is a wasteful number, since it uses less digits than its factorization.

676155559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16491640.

The product of its digits is 1417500, while the sum is 49.

The square root of 676155559 is about 26002.9913471508. The cubic root of 676155559 is about 877.7056101605.

The spelling of 676155559 in words is "six hundred seventy-six million, one hundred fifty-five thousand, five hundred fifty-nine".