90016066447 has 2 divisors, whose sum is σ = 90016066448. Its totient is φ = 90016066446.

The previous prime is 90016066403. The next prime is 90016066463. The reversal of 90016066447 is 74466061009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90016066447 - 2¹¹ = 90016064399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90016166447) 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, 45008033223 + 45008033224.

It is an arithmetic number, because the mean of its divisors is an integer number (45008033224).

Almost surely, 2^90016066447 is an apocalyptic number.

90016066447 is a deficient number, since it is larger than the sum of its proper divisors (1).

90016066447 is an equidigital number, since it uses as much as digits as its factorization.

90016066447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 90016066447 in words is "ninety billion, sixteen million, sixty-six thousand, four hundred forty-seven".