660003371 has 2 divisors, whose sum is σ = 660003372. Its totient is φ = 660003370.

The previous prime is 660003349. The next prime is 660003389. The reversal of 660003371 is 173300066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660003371 - 2¹⁰ = 660002347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 660003371.

It is not a weakly prime, because it can be changed into another prime (660003571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330001685 + 330001686.

It is an arithmetic number, because the mean of its divisors is an integer number (330001686).

Almost surely, 2^660003371 is an apocalyptic number.

660003371 is a deficient number, since it is larger than the sum of its proper divisors (1).

660003371 is an equidigital number, since it uses as much as digits as its factorization.

660003371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 660003371 is about 25690.5307652450. The cubic root of 660003371 is about 870.6602514334.

The spelling of 660003371 in words is "six hundred sixty million, three thousand, three hundred seventy-one".