1667432675563 has 2 divisors, whose sum is σ = 1667432675564. Its totient is φ = 1667432675562.

The previous prime is 1667432675539. The next prime is 1667432675581. The reversal of 1667432675563 is 3655762347661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1667432675563 is a prime.

It is not a weakly prime, because it can be changed into another prime (1667432775563) 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, 833716337781 + 833716337782.

It is an arithmetic number, because the mean of its divisors is an integer number (833716337782).

Almost surely, 2^{1667432675563} is an apocalyptic number.

1667432675563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1667432675563 is an equidigital number, since it uses as much as digits as its factorization.

1667432675563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 114307200, while the sum is 61.

The spelling of 1667432675563 in words is "one trillion, six hundred sixty-seven billion, four hundred thirty-two million, six hundred seventy-five thousand, five hundred sixty-three".