266012331121967 has 2 divisors, whose sum is σ = 266012331121968. Its totient is φ = 266012331121966.

The previous prime is 266012331121963. The next prime is 266012331121993. The reversal of 266012331121967 is 769121133210662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266012331121967 - 2² = 266012331121963 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266012331121963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133006165560983 + 133006165560984.

It is an arithmetic number, because the mean of its divisors is an integer number (133006165560984).

Almost surely, 2^{266012331121967} is an apocalyptic number.

266012331121967 is a deficient number, since it is larger than the sum of its proper divisors (1).

266012331121967 is an equidigital number, since it uses as much as digits as its factorization.

266012331121967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 266012331121967 in words is "two hundred sixty-six trillion, twelve billion, three hundred thirty-one million, one hundred twenty-one thousand, nine hundred sixty-seven".