16017641 has 2 divisors, whose sum is σ = 16017642. Its totient is φ = 16017640.

The previous prime is 16017619. The next prime is 16017653. The reversal of 16017641 is 14671061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15840400 + 177241 = 3980^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 16017641 - 2⁶ = 16017577 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16017641.

It is not a weakly prime, because it can be changed into another prime (16017601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8008820 + 8008821.

It is an arithmetic number, because the mean of its divisors is an integer number (8008821).

Almost surely, 2^16017641 is an apocalyptic number.

It is an amenable number.

16017641 is a deficient number, since it is larger than the sum of its proper divisors (1).

16017641 is an equidigital number, since it uses as much as digits as its factorization.

16017641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 16017641 is about 4002.2045175128. The cubic root of 16017641 is about 252.0767854107.

The spelling of 16017641 in words is "sixteen million, seventeen thousand, six hundred forty-one".