18668683303 has 2 divisors, whose sum is σ = 18668683304. Its totient is φ = 18668683302.

The previous prime is 18668683277. The next prime is 18668683337. The reversal of 18668683303 is 30338686681.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18668683303 - 2¹³ = 18668675111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18668683393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9334341651 + 9334341652.

It is an arithmetic number, because the mean of its divisors is an integer number (9334341652).

Almost surely, 2^18668683303 is an apocalyptic number.

18668683303 is a deficient number, since it is larger than the sum of its proper divisors (1).

18668683303 is an equidigital number, since it uses as much as digits as its factorization.

18668683303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 18668683303 in words is "eighteen billion, six hundred sixty-eight million, six hundred eighty-three thousand, three hundred three".