660349103 has 2 divisors, whose sum is σ = 660349104. Its totient is φ = 660349102.

The previous prime is 660349057. The next prime is 660349121. The reversal of 660349103 is 301943066.

It is a happy number.

660349103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660349103 - 2¹⁴ = 660332719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 660349103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660349133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330174551 + 330174552.

It is an arithmetic number, because the mean of its divisors is an integer number (330174552).

Almost surely, 2^660349103 is an apocalyptic number.

660349103 is a deficient number, since it is larger than the sum of its proper divisors (1).

660349103 is an equidigital number, since it uses as much as digits as its factorization.

660349103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 660349103 is about 25697.2586670252. The cubic root of 660349103 is about 870.8122519523.

The spelling of 660349103 in words is "six hundred sixty million, three hundred forty-nine thousand, one hundred three".