667722250755107 has 2 divisors, whose sum is σ = 667722250755108. Its totient is φ = 667722250755106.

The previous prime is 667722250755097. The next prime is 667722250755113. The reversal of 667722250755107 is 701557052227766.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667722250755107 - 2⁴⁸ = 386247274044451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667722250755107.

It is not a weakly prime, because it can be changed into another prime (667722250355107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333861125377553 + 333861125377554.

It is an arithmetic number, because the mean of its divisors is an integer number (333861125377554).

Almost surely, 2^{667722250755107} is an apocalyptic number.

667722250755107 is a deficient number, since it is larger than the sum of its proper divisors (1).

667722250755107 is an equidigital number, since it uses as much as digits as its factorization.

667722250755107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86436000, while the sum is 62.

The spelling of 667722250755107 in words is "six hundred sixty-seven trillion, seven hundred twenty-two billion, two hundred fifty million, seven hundred fifty-five thousand, one hundred seven".