11990006663 has 2 divisors, whose sum is σ = 11990006664. Its totient is φ = 11990006662.

The previous prime is 11990006603. The next prime is 11990006669. The reversal of 11990006663 is 36660009911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11990006663 - 2¹⁴ = 11989990279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11990006663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11990006669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5995003331 + 5995003332.

It is an arithmetic number, because the mean of its divisors is an integer number (5995003332).

Almost surely, 2^11990006663 is an apocalyptic number.

11990006663 is a deficient number, since it is larger than the sum of its proper divisors (1).

11990006663 is an equidigital number, since it uses as much as digits as its factorization.

11990006663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 41.

The spelling of 11990006663 in words is "eleven billion, nine hundred ninety million, six thousand, six hundred sixty-three".