40333660217 has 2 divisors, whose sum is σ = 40333660218. Its totient is φ = 40333660216.

The previous prime is 40333660093. The next prime is 40333660229. The reversal of 40333660217 is 71206633304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36260157241 + 4073502976 = 190421^2 + 63824^2 .

It is a cyclic number.

It is not a de Polignac number, because 40333660217 - 2¹⁰ = 40333659193 is a prime.

It is not a weakly prime, because it can be changed into another prime (40333660277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20166830108 + 20166830109.

It is an arithmetic number, because the mean of its divisors is an integer number (20166830109).

Almost surely, 2^40333660217 is an apocalyptic number.

It is an amenable number.

40333660217 is a deficient number, since it is larger than the sum of its proper divisors (1).

40333660217 is an equidigital number, since it uses as much as digits as its factorization.

40333660217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 35.

The spelling of 40333660217 in words is "forty billion, three hundred thirty-three million, six hundred sixty thousand, two hundred seventeen".