361666567 has 2 divisors, whose sum is σ = 361666568. Its totient is φ = 361666566.

The previous prime is 361666523. The next prime is 361666579. The reversal of 361666567 is 765666163.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 361666567 - 2⁷ = 361666439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361646567) 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, 180833283 + 180833284.

It is an arithmetic number, because the mean of its divisors is an integer number (180833284).

Almost surely, 2^361666567 is an apocalyptic number.

361666567 is a deficient number, since it is larger than the sum of its proper divisors (1).

361666567 is an equidigital number, since it uses as much as digits as its factorization.

361666567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 46.

The square root of 361666567 is about 19017.5331470725. The cubic root of 361666567 is about 712.4747122245.

The spelling of 361666567 in words is "three hundred sixty-one million, six hundred sixty-six thousand, five hundred sixty-seven".