667380107993 has 2 divisors, whose sum is σ = 667380107994. Its totient is φ = 667380107992.

The previous prime is 667380107983. The next prime is 667380108023. The reversal of 667380107993 is 399701083766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 663812674009 + 3567433984 = 814747^2 + 59728^2 .

It is a cyclic number.

It is not a de Polignac number, because 667380107993 - 2¹⁶ = 667380042457 is a prime.

It is not a weakly prime, because it can be changed into another prime (667380107983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333690053996 + 333690053997.

It is an arithmetic number, because the mean of its divisors is an integer number (333690053997).

Almost surely, 2^667380107993 is an apocalyptic number.

It is an amenable number.

667380107993 is a deficient number, since it is larger than the sum of its proper divisors (1).

667380107993 is an equidigital number, since it uses as much as digits as its factorization.

667380107993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10287648, while the sum is 59.

The spelling of 667380107993 in words is "six hundred sixty-seven billion, three hundred eighty million, one hundred seven thousand, nine hundred ninety-three".