16654001549 has 2 divisors, whose sum is σ = 16654001550. Its totient is φ = 16654001548.

The previous prime is 16654001537. The next prime is 16654001561. The reversal of 16654001549 is 94510045661.

It is a balanced prime because it is at equal distance from previous prime (16654001537) and next prime (16654001561).

It can be written as a sum of positive squares in only one way, i.e., 14636644324 + 2017357225 = 120982^2 + 44915^2 .

It is an emirp because it is prime and its reverse (94510045661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16654001549 - 2²⁴ = 16637224333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16654001849) 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, 8327000774 + 8327000775.

It is an arithmetic number, because the mean of its divisors is an integer number (8327000775).

Almost surely, 2^16654001549 is an apocalyptic number.

It is an amenable number.

16654001549 is a deficient number, since it is larger than the sum of its proper divisors (1).

16654001549 is an equidigital number, since it uses as much as digits as its factorization.

16654001549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 16654001549 in words is "sixteen billion, six hundred fifty-four million, one thousand, five hundred forty-nine".