660500147 has 2 divisors, whose sum is σ = 660500148. Its totient is φ = 660500146.

The previous prime is 660500111. The next prime is 660500171. The reversal of 660500147 is 741005066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660500147 - 2⁶ = 660500083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (660503147) 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, 330250073 + 330250074.

It is an arithmetic number, because the mean of its divisors is an integer number (330250074).

Almost surely, 2^660500147 is an apocalyptic number.

660500147 is a deficient number, since it is larger than the sum of its proper divisors (1).

660500147 is an equidigital number, since it uses as much as digits as its factorization.

660500147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 660500147 is about 25700.1974116932. The cubic root of 660500147 is about 870.8786415524.

The spelling of 660500147 in words is "six hundred sixty million, five hundred thousand, one hundred forty-seven".