660226163 has 2 divisors, whose sum is σ = 660226164. Its totient is φ = 660226162.

The previous prime is 660226139. The next prime is 660226169. The reversal of 660226163 is 361622066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660226163 - 2²⁰ = 659177587 is a prime.

It is a Chen prime.

It is equal to p_34297304 and since 660226163 and 34297304 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (660226169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330113081 + 330113082.

It is an arithmetic number, because the mean of its divisors is an integer number (330113082).

Almost surely, 2^660226163 is an apocalyptic number.

660226163 is a deficient number, since it is larger than the sum of its proper divisors (1).

660226163 is an equidigital number, since it uses as much as digits as its factorization.

660226163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 660226163 is about 25694.8664717293. The cubic root of 660226163 is about 870.7582076586.

The spelling of 660226163 in words is "six hundred sixty million, two hundred twenty-six thousand, one hundred sixty-three".