667076770667 has 2 divisors, whose sum is σ = 667076770668. Its totient is φ = 667076770666.

The previous prime is 667076770649. The next prime is 667076770747. The reversal of 667076770667 is 766077670766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667076770667 - 2²⁸ = 666808335211 is a prime.

It is not a weakly prime, because it can be changed into another prime (667076770267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333538385333 + 333538385334.

It is an arithmetic number, because the mean of its divisors is an integer number (333538385334).

Almost surely, 2^667076770667 is an apocalyptic number.

667076770667 is a deficient number, since it is larger than the sum of its proper divisors (1).

667076770667 is an equidigital number, since it uses as much as digits as its factorization.

667076770667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 130691232, while the sum is 65.

Subtracting 667076770667 from its reverse (766077670766), we obtain a palindrome (99000900099).

The spelling of 667076770667 in words is "six hundred sixty-seven billion, seventy-six million, seven hundred seventy thousand, six hundred sixty-seven".