676166657 has 2 divisors, whose sum is σ = 676166658. Its totient is φ = 676166656.

The previous prime is 676166599. The next prime is 676166663. The reversal of 676166657 is 756661676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 464143936 + 212022721 = 21544^2 + 14561^2 .

It is a cyclic number.

It is not a de Polignac number, because 676166657 - 2⁸ = 676166401 is a prime.

It is not a weakly prime, because it can be changed into another prime (676169657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338083328 + 338083329.

It is an arithmetic number, because the mean of its divisors is an integer number (338083329).

Almost surely, 2^676166657 is an apocalyptic number.

It is an amenable number.

676166657 is a deficient number, since it is larger than the sum of its proper divisors (1).

676166657 is an equidigital number, since it uses as much as digits as its factorization.

676166657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 50.

The square root of 676166657 is about 26003.2047448002. The cubic root of 676166657 is about 877.7104121736.

The spelling of 676166657 in words is "six hundred seventy-six million, one hundred sixty-six thousand, six hundred fifty-seven".