126765667001 has 2 divisors, whose sum is σ = 126765667002. Its totient is φ = 126765667000.

The previous prime is 126765666983. The next prime is 126765667097. The reversal of 126765667001 is 100766567621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104950081600 + 21815585401 = 323960^2 + 147701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126765667001 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (126765667901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63382833500 + 63382833501.

It is an arithmetic number, because the mean of its divisors is an integer number (63382833501).

Almost surely, 2^126765667001 is an apocalyptic number.

It is an amenable number.

126765667001 is a deficient number, since it is larger than the sum of its proper divisors (1).

126765667001 is an equidigital number, since it uses as much as digits as its factorization.

126765667001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 126765667001 in words is "one hundred twenty-six billion, seven hundred sixty-five million, six hundred sixty-seven thousand, one".