1266022612633 has 2 divisors, whose sum is σ = 1266022612634. Its totient is φ = 1266022612632.

The previous prime is 1266022612601. The next prime is 1266022612709. The reversal of 1266022612633 is 3362162206621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 697345245184 + 568677367449 = 835072^2 + 754107^2 .

It is a cyclic number.

It is not a de Polignac number, because 1266022612633 - 2⁵ = 1266022612601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1266022612333) 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, 633011306316 + 633011306317.

It is an arithmetic number, because the mean of its divisors is an integer number (633011306317).

Almost surely, 2^{1266022612633} is an apocalyptic number.

It is an amenable number.

1266022612633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266022612633 is an equidigital number, since it uses as much as digits as its factorization.

1266022612633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 1266022612633 in words is "one trillion, two hundred sixty-six billion, twenty-two million, six hundred twelve thousand, six hundred thirty-three".