4069666399 has 2 divisors, whose sum is σ = 4069666400. Its totient is φ = 4069666398.

The previous prime is 4069666369. The next prime is 4069666417. The reversal of 4069666399 is 9936669604.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4069666399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4069666339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2034833199 + 2034833200.

It is an arithmetic number, because the mean of its divisors is an integer number (2034833200).

Almost surely, 2^4069666399 is an apocalyptic number.

4069666399 is a deficient number, since it is larger than the sum of its proper divisors (1).

4069666399 is an equidigital number, since it uses as much as digits as its factorization.

4069666399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11337408, while the sum is 58.

The square root of 4069666399 is about 63793.9370081515. The cubic root of 4069666399 is about 1596.5637711934.

The spelling of 4069666399 in words is "four billion, sixty-nine million, six hundred sixty-six thousand, three hundred ninety-nine".