660103919 has 2 divisors, whose sum is σ = 660103920. Its totient is φ = 660103918.

The previous prime is 660103901. The next prime is 660103943. The reversal of 660103919 is 919301066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 660103919 - 2²⁰ = 659055343 is a prime.

It is a super-2 number, since 2×660103919² = 871474367758317122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (600103919) 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, 330051959 + 330051960.

It is an arithmetic number, because the mean of its divisors is an integer number (330051960).

Almost surely, 2^660103919 is an apocalyptic number.

660103919 is a deficient number, since it is larger than the sum of its proper divisors (1).

660103919 is an equidigital number, since it uses as much as digits as its factorization.

660103919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 660103919 is about 25692.4875985180. The cubic root of 660103919 is about 870.7044626731.

The spelling of 660103919 in words is "six hundred sixty million, one hundred three thousand, nine hundred nineteen".