660234163 has 2 divisors, whose sum is σ = 660234164. Its totient is φ = 660234162.

The previous prime is 660234149. The next prime is 660234181. The reversal of 660234163 is 361432066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 660234163 - 2¹⁷ = 660103091 is a prime.

It is not a weakly prime, because it can be changed into another prime (660234103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330117081 + 330117082.

It is an arithmetic number, because the mean of its divisors is an integer number (330117082).

Almost surely, 2^660234163 is an apocalyptic number.

660234163 is a deficient number, since it is larger than the sum of its proper divisors (1).

660234163 is an equidigital number, since it uses as much as digits as its factorization.

660234163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 660234163 is about 25695.0221443765. The cubic root of 660234163 is about 870.7617246542.

The spelling of 660234163 in words is "six hundred sixty million, two hundred thirty-four thousand, one hundred sixty-three".