40666950349 has 2 divisors, whose sum is σ = 40666950350. Its totient is φ = 40666950348.

The previous prime is 40666950319. The next prime is 40666950413. The reversal of 40666950349 is 94305966604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31509800100 + 9157150249 = 177510^2 + 95693^2 .

It is a cyclic number.

It is not a de Polignac number, because 40666950349 - 2⁷ = 40666950221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40666950296 and 40666950305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40666950319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20333475174 + 20333475175.

It is an arithmetic number, because the mean of its divisors is an integer number (20333475175).

Almost surely, 2^40666950349 is an apocalyptic number.

It is an amenable number.

40666950349 is a deficient number, since it is larger than the sum of its proper divisors (1).

40666950349 is an equidigital number, since it uses as much as digits as its factorization.

40666950349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 52.

The spelling of 40666950349 in words is "forty billion, six hundred sixty-six million, nine hundred fifty thousand, three hundred forty-nine".