16595641 has 2 divisors, whose sum is σ = 16595642. Its totient is φ = 16595640.

The previous prime is 16595639. The next prime is 16595659. The reversal of 16595641 is 14659561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9985600 + 6610041 = 3160^2 + 2571^2 .

It is a cyclic number.

It is not a de Polignac number, because 16595641 - 2¹ = 16595639 is a prime.

Together with 16595639, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16595641.

It is not a weakly prime, because it can be changed into another prime (16595681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8297820 + 8297821.

It is an arithmetic number, because the mean of its divisors is an integer number (8297821).

Almost surely, 2^16595641 is an apocalyptic number.

It is an amenable number.

16595641 is a deficient number, since it is larger than the sum of its proper divisors (1).

16595641 is an equidigital number, since it uses as much as digits as its factorization.

16595641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 37.

The square root of 16595641 is about 4073.7747851348. The cubic root of 16595641 is about 255.0731098841.

The spelling of 16595641 in words is "sixteen million, five hundred ninety-five thousand, six hundred forty-one".