40203666611 has 2 divisors, whose sum is σ = 40203666612. Its totient is φ = 40203666610.

The previous prime is 40203666593. The next prime is 40203666619. The reversal of 40203666611 is 11666630204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40203666611 - 2¹⁰ = 40203665587 is a prime.

It is not a weakly prime, because it can be changed into another prime (40203666619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20101833305 + 20101833306.

It is an arithmetic number, because the mean of its divisors is an integer number (20101833306).

Almost surely, 2^40203666611 is an apocalyptic number.

40203666611 is a deficient number, since it is larger than the sum of its proper divisors (1).

40203666611 is an equidigital number, since it uses as much as digits as its factorization.

40203666611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 40203666611 in words is "forty billion, two hundred three million, six hundred sixty-six thousand, six hundred eleven".