333380668781 has 2 divisors, whose sum is σ = 333380668782. Its totient is φ = 333380668780.

The previous prime is 333380668771. The next prime is 333380668837. The reversal of 333380668781 is 187866083333.

It is an a-pointer prime, because the next prime (333380668837) can be obtained adding 333380668781 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331418976100 + 1961692681 = 575690^2 + 44291^2 .

It is an emirp because it is prime and its reverse (187866083333) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 333380668781 - 2¹⁰ = 333380667757 is a prime.

It is a super-2 number, since 2×333380668781² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (333380668771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166690334390 + 166690334391.

It is an arithmetic number, because the mean of its divisors is an integer number (166690334391).

Almost surely, 2^333380668781 is an apocalyptic number.

It is an amenable number.

333380668781 is a deficient number, since it is larger than the sum of its proper divisors (1).

333380668781 is an equidigital number, since it uses as much as digits as its factorization.

333380668781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10450944, while the sum is 56.

The spelling of 333380668781 in words is "three hundred thirty-three billion, three hundred eighty million, six hundred sixty-eight thousand, seven hundred eighty-one".